For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger Model CHB 100 Amplifier. Schematic diagram is on 11 X 17 center page. Five other regular sized pages with information for tube replacement, balancing output tubes, fuse, microphone and phono input connections, auxiliary power, bass and treble...Power ConsumptionHum and NoiseGain Sensitivity Input Impedance Outputs 4, 8, 16 ohm speaker, 25-volt & 75 volt line Voltage chartQuick disconnect sockets & connectionsRemote controllerRear view diagram of amp with labels. Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete reprint in very good condition. 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 CHB 35A Amplifier. Amp schematic diagram on an 11 X 17 center page. Five other regular sized pages have information for tube replacement, balancing output tubes mic and phonograph input connections, output, controls, operation,...Power ConsumptionHum and NoiseGain Sensitivity Input & Output Impedance Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint in very good condition. 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 SERVICE & OPERATING MANUAL for a BOGEN Challenger CHA 10 Watt Amplifier. Amp schematic diagram is on an 11 X 17 center page. Four other regular 8.5 x 11sized pages have information for mic and phonograph connections, output, volume and tone controls, operation, specifications, tubes, (each number listed).Power Output Max. Power Power RequirementsFrequency Response Hum and NoiseGain Input & Output Impedance Dimensions Weight Complete reprint in very good condition. Large 11 x 17 center schematic diagram and four 8 1/2 x 11 clear, legible pages. Airmail ShippingNo import duties will be charged for this shipmentProtected 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.

Challenger Amplifier Co. HF8A mono integrated amplifier. Someone drilled a hole in the front upper left (blue arrow points to it on the 2nd photo). The brown control knobs are listed separately and not included in this sale. Selling as is and untested. For amp project. No returns.Number of Tubes5Valves / Tubes6SC7 6SL7GT 6V6GT 6V6GT 6X5GTMain principleAudio-AmplificationWave bands- withoutPower type and voltageAlternating Current supply (AC) / 60 cycles, 117V = 110 -120 VoltLoudspeaker- This model requires external speaker(s).MaterialMetal case, TUBES VISIBLEfrom Radiomuseum.orgModel: HF8A - Challenger Amplifier Co. BogenShapeChassis only or for «building in»Dimensions (WHD)11 x 6 x 8.25 inch / 279 x 152 x 210 mmNotesChallenger Model HF8A is an AC Operated 3 Channel 10 Watt Audio Amplifier.Price in first year of sale39.99 USDMentioned inRadio Shack Catalog (1956, page 166)Literature/Schematics (1)Photofact Folder, Howard W. SAMS (Set 316 Folder 6 Dated 5-56)

For Sale SERVICE & OPERATING MANUAL for the BOGEN Challenger CHB14A Amplifier. Schematic diagram is on 11 X 17 center page. Four other regular sized pages with information for IF TROUBLE OCCURS, tube replacement, fuse, mic and phonograph input connections, output, controls, auxiliary power, operation, bass and treble switches...Power ConsumptionHum and NoiseGain Sensitivity Input Impedance Output Tone Control Action TUBES: Each tube number is given Dimensions Weight Complete, clear reprint in very good condition. 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 a BOGEN Challenger CHA 10 Watt Amplifier. Amp schematic diagram is on an 11 X 17 center page. Four other regular 8.5 x 11sized pages have information for mic and phonograph connections, output, volume and tone controls, operation, specifications, tubes, (each number listed).Power Output Max. Power Power RequirementsFrequency Response Hum and NoiseGain Input & Output Impedance Dimensions Weight Complete reprint in very good condition. Large 11 x 17 center schematic diagram and four 8 1/2 x 11 clear, legible pages. Airmail ShippingNo import duties will be charged for this shipmentProtected in a waterproof covering and a well sealed package with a cardboard insert.Thank you from Canada.

Challenger Amplifier Co. HF8A mono integrated amplifier. Someone drilled a hole in the front upper left (blue arrow points to it on the 2nd photo). The brown control knobs are listed separately and not included in this sale. Selling as is and untested. For amp project. No returns.Number of Tubes5Valves / Tubes6SC7 6SL7GT 6V6GT 6V6GT 6X5GTMain principleAudio-AmplificationWave bands- withoutPower type and voltageAlternating Current supply (AC) / 60 cycles, 117V = 110 -120 VoltLoudspeaker- This model requires external speaker(s).MaterialMetal case, TUBES VISIBLEfrom Radiomuseum.orgModel: HF8A - Challenger Amplifier Co. BogenShapeChassis only or for «building in»Dimensions (WHD)11 x 6 x 8.25 inch / 279 x 152 x 210 mmNotesChallenger Model HF8A is an AC Operated 3 Channel 10 Watt Audio Amplifier.Price in first year of sale39.99 USDMentioned inRadio Shack Catalog (1956, page 166)Literature/Schematics (1)Photofact Folder, Howard W. SAMS (Set 316 Folder 6 Dated 5-56)

For Sale SERVICE & OPERATING MANUAL for a BOGEN Challenger CHA 10 Watt Amplifier. Amp schematic diagram is on an 11 X 17 center page. Four other regular 8.5 x 11sized pages have information for mic and phonograph connections, output, volume and tone controls, operation, specifications, tubes, (each number listed).Power Output Max. Power Power RequirementsFrequency Response Hum and NoiseGain Input & Output Impedance Dimensions Weight Complete reprint in very good condition. Large 11 x 17 center schematic diagram and four 8 1/2 x 11 clear, legible pages. Airmail ShippingNo import duties will be charged for this shipmentProtected 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.