For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

Bogen Challenger CHS-20. Selling as parts. I have no clue what this does or how it works. Came from an estate. I plugged in and didn’t see any kind of power light on it.

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

Bogen Challenger C-20A Amplifier Vintage electronics tube amplifier solid state in excellent condition

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

800x600 Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 (IN SCANNED PDF FORMAT SENT VIA EMAIL) THIS ITEM IS A DIGITALLY DELIVERED ITEM, YOU WILL NOT BE RECEIVING A PHYSICAL PRODUCT CONDITION: SCANNED ITEM THIS IS A SCANNED ITEM. THIS ITEM WILL ONLY BE SENT VIA EMAIL IN A PDF FORMAT TO SAVE S&H FEES, THERE MAY BE FOLDOUT DIAGRAMS, THESE PAGES ARE SCANNED WITH THE FOLDS MARKED WITH AN ARROW AND HI LIGHTED IN YELLOW. THERE MAY BE PAGES THAT WERE MISSED OR INCOMPLETE; THESE PAGES HAVE BEEN RE-SCANNED AND PLACED AT BACK. THERE ARE SOME CASES WHERE ALTERNATE PAGES MAY BE INVERTED. AFTER SCANNING EACH OF THESE FOLDERS ALL WERE CHECKED FOR ERRORS AND MISSING PAGES AND CORRECTIONS AND ADDITIONS ARE MADE. BLANK PAGES, PAGES WITHOUT TECHNICAL TEXT, NO DIAGRAMS OR WITHOUT DATA ARE NOT INCLUDED. THESE MAY BE A BACK PAGE WITH JUST A PHRASE LIKE PRINTED IN JAPAN OR THE LIKES WITH NO OTHER INFO. THIS IS DONE TO SAVE STORAGE. PULLOUTS OR OVERSIZED PAGES ARE SCANNED IN 8 ½ X 11 “SECTIONS WITH THE ABOVE MENTIONED OVERLAY POINTS MARKED These are intended for technical reference in servicing. Some pages may be scanned horizontal to save time. The PDf file should be read in Adobe software or PDF reader. Any questions please contact seller. SOME PAGES MAY HAVE TO BE ROTATED TO VIEW. ebay messaging does not support pdf at this time. we send the file via email to the email you supply once purchase is complete. with thousands of manuals on hand we may have the one you need. contact us for details. Service manual, Technical information.

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail Shipping No import duties will be charged for this shipment. Combined shipping for multiple purchases: If eBay checkout cart does not work properly, please feel free to purchase more than one item individually. All will be sent in one package and any excess paid for shipping will be refunded to you after shipping.Or, if you wish to purchase more than one item, simply send a message and we will do our best to help you. Protected in a waterproof covering and a well sealed package. Thank you from Canada.

Up For Sale Is The Item Listed In The Title. The Condition Is Noted Above And It Sells As Pictured. Please Check Out The Pictures For More Details, The Picture Is Of The Actual Item You Are Bidding On. Payment Is Due Within Two Days Of The Listings Close In The Form Of An Instant PayPal Transfer. I Do Not Cancel Orders After A Buyer Has Committed To Purchase. Shipping Will Be FREE To The United States Which Includes Delivery Confirmation. Shipping Courier Is At The Discretion Of The Seller And Could Either Be USPS, UPS, Or FedEx.Typically Shipments Are Dispatched Within 24 Hours Or Less Monday Through Friday. I Do Not Ship Outside Of The United States Unless Through The Global Shipping Program And I Do Not Ship To Unconfirmed Addresses And Cannot Change Addresses After The Purchase Has Been Made. THANKS FOR CHECKING OUT THIS ITEM AND PLEASE TAKE A MOMENT TO CHECK OUT MY OTHER LISTINGS!

For Sale MANUAL for the BOGEN Challenger CHB20A Amplifier. Amp schematic diagram on an 11 X 17 center page. Six other regular sized pages have information for tubes, modification in power supply circuit, mic and phonograph input connections, output, controls, operation, accessories, installation, if trouble occurs...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint with six regular size pages plus one 11 X 17 schematic page. Airmail ShippingNo customs import duty for this shipment. Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHA 20 Watt Amplifier. Amp schematic diagram (dated 12-10-56) is on 11 X 17 center page. Three other regular sized pages with information for tubes, fuse replacement, pilot light replacement, mic and phonograph input connections, output, controls, operation, cage removal. SPECIFICATIONSPower Output Max. Power Power ConsumptionFrequency Response Hum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Very good condition reprint: 11 X 17 center schematic page and three regular size pages of clear, legible information, stored in a climate controlled, clean environment in Canada. Airmail ShippingNo import duties will be charged for this shipment.Protected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada. .