This 30VA R-core transformer is compatible with a variety of brands and is designed for use with the EAR834 Phono Stage Tube Preamp Audio system. The transformer is made by ZERO-ZONE and comes with dual 220V+220V and 14V outputs. It was manufactured in China and is suitable for use in a range of consumer electronics applications. This high-quality transformer is an excellent choice for anyone looking for a reliable and versatile component for their audio system.

EAR834-Tube Phono Amplifier(MM) RIAA Finished Board Summary MOFI-EAR834-Phono Amp(MM), It is based on the core circuit of the EAR834 phono amplifier. -Tech highlights Compared with the commonly reproduction of EAR834, it improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?heater-voltage soft-start feature for vacuum heater is included which will take about 5 second to reach the designed voltage(12.6v) protecting the tube from any voltage shock and extending life. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?Mirror HR-pin, please shift the tube counterclockwise every three months, reduce tube magnetization, further extend tube life and save money. 9?More cost-effective sound modification plan. PCB SIZE?153x153x1.6mm 1oz Cu, HASL with lead. Power requirements: Heater Volt: AC12~15V, I?0.8A, Best:14VAC@1A High Volt: AC220~260V, I?0.02A, Best:[email protected] Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit.

This 30VA R-core transformer is compatible with a variety of brands and is designed for use with the EAR834 Phono Stage Tube Preamp Audio system. The transformer is made by ZERO-ZONE and comes with dual 220V+220V and 14V outputs. It was manufactured in China and is suitable for use in a range of consumer electronics applications. This high-quality transformer is an excellent choice for anyone looking for a reliable and versatile component for their audio system.

EAR834-Tube Phono Amplifier(MM) RIAA Finished Board Summary MOFI-EAR834-Phono Amp(MM), It is based on the core circuit of the EAR834 phono amplifier. -Tech highlights Compared with the commonly reproduction of EAR834, it improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?heater-voltage soft-start feature for vacuum heater is included which will take about 5 second to reach the designed voltage(12.6v) protecting the tube from any voltage shock and extending life. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?Mirror HR-pin, please shift the tube counterclockwise every three months, reduce tube magnetization, further extend tube life and save money. 9?More cost-effective sound modification plan. PCB SIZE?153x153x1.6mm 1oz Cu, HASL with lead. Power requirements: Heater Volt: AC12~15V, I?0.8A, Best:14VAC@1A High Volt: AC220~260V, I?0.02A, Best:[email protected] Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit.

Introducing the 50VA R-core Transformer, perfect for powering your EAR834 Phono Stage PreAmplifier Audio system. With a power output of 50W and made by Mofi-Acoustics, this transformer is suitable for universal use and manufactured in China. The model number is SY2306 and it features a voltage output of 240V+14V+14V.

This 30VA R-core transformer is compatible with a variety of brands and is designed for use with the EAR834 Phono Stage Tube Preamp Audio system. The transformer is made by ZERO-ZONE and comes with dual 220V+220V and 14V outputs. It was manufactured in China and is suitable for use in a range of consumer electronics applications. This high-quality transformer is an excellent choice for anyone looking for a reliable and versatile component for their audio system.

EAR834-Tube Phono Amplifier(MM) RIAA Finished Board Summary MOFI-EAR834-Phono Amp(MM), It is based on the core circuit of the EAR834 phono amplifier. -Tech highlights Compared with the commonly reproduction of EAR834, it improved: 1?High Voltage?Two-stage buck regulator filter, Two low-pass filter (with a corner frequency of 1.6Hz&16Hz) prevents power noise from being introduced into the amplifier. Provide purer power supply (close to battery). 2?The high-voltage power supply uses MOSFET as pass transistors, which have a sense of tube sound characteristics but rejecting the rectification and regulation noise. 3?high-voltage soft-start feature is included which will take about 5 second to reach the designed voltage protecting the tube from any voltage shock. 4?heater-voltage soft-start feature for vacuum heater is included which will take about 5 second to reach the designed voltage(12.6v) protecting the tube from any voltage shock and extending life. 5?all-in-one design, single-point grounding, ground resistance is close to the 0.02 ohm resistance value, low noisedesign. 6?PCB is Small with double-sided smt. 7?The triangular tube layout reduces the number of dual-channel common tubes, further improves the separation and reduces crosstalk. 8?Mirror HR-pin, please shift the tube counterclockwise every three months, reduce tube magnetization, further extend tube life and save money. 9?More cost-effective sound modification plan. PCB SIZE?153x153x1.6mm 1oz Cu, HASL with lead. Power requirements: Heater Volt: AC12~15V, I?0.8A, Best:14VAC@1A High Volt: AC220~260V, I?0.02A, Best:[email protected] Finished board: Based on the well-tested board on the standard version kit, we verified all key points' voltage, and used the signal generator and oscilloscope for analog waveform double verification. We will not use this board for listening test. All finished pcbs are all carefully hand-soldered and fully tests, so the price is higher and less cost performance. Price-sensitive consumers but with have DIY ability are recommended to choose the kit.

We have EAR 834P tube phono preamplifier for sale.Cosmetically it is in as New condition.It has been tested. And It works and sound great.This is MM version. Needs a separate step up for MC cartridges. We ship worldwide via USPS Priority Mail.Thanks for looking.

We use a 24 hour courier service but please allow up to 3 days handling time as a lot of our items are large and timeconsuming to package. Many thanks :) Fully working and tested EAR 834P valve MM & MC switchable Phonostage. Fully working and tested, great sounding! Valves are all SOVTEK. Very little in the way of cosmetic imperfections. One of finest valve stages available.A true audio classic. Please inspect the pictures (please also use the zoom function on the photos) and be sure of what you are buying, please don’t buy this if you are at all unsure, I will answer any questions you have, just email BEFORE PURCHASING. This is a used item and has been fairly described to the best of our ability, it has not been serviced by us, just described in it’s current operational and cosmetic order. If you are not happy with any item, we can arrange collection from you for a full refund (even if you are outside the UK) We will not provide any partial refunds and will not cover any restoration, detailed or internal cleaning, repairs or modification costs. Any questions regarding out of eBay deals will be ignored Any items suspected missing in transit, must be reported to us within 10 days. Shipping We ship using a 24 hour courier. Please allow up to 3 days handling time as a lot of our items are large and take time to package well. Collections Collections from our unit in Bordon are available on Wednesdays and Fridays. Visit our storeHi-Fi Hangar Vintage hifi specialists Other PROJECTS, SPARES & REPAIRS HI-FI & AUDIO EQUIPMENT AMPLIFIERS DISK PLAYERS (CD/DVD/MD/SACD) TUNERS CASSETTE/TAPE DECKS SPEAKERS STUDIO EQUIPMENT TURNTABLES/RECORD PLAYERS CARTRIDGES TONEARMS MERCHANDISE T-SHIRTS ACCESSORIES Payment We take payment through the ebay managed payment system, Shipping We ship using a 24 hour courier. Please allow up to 3 days handling time as a lot of our items are large and take time to package well. _gsrx_vers_1545 (GS 9.4.1 (1545))

The phono pre functions like a gem. It’s missing the switch on the back where it says MM/MC because it’s strictly MM. throwing in 3 1960 Telefunken 12ax7 with the distinctive diamond on the bottom. I have 3 Sylvania JAN tubes I’ll just add with the order at no cost.

We have EAR 834P tube phono preamplifier for sale.Cosmetically it is in as New condition.It has been tested. And It works and sound great.We ship worldwide via USPS Priority Mail.Thanks for looking.

We have EAR 834P tube phono preamplifier for sale.Cosmetically it is in as New condition.It has been tested. And It works and sound great.We ship worldwide via USPS Priority Mail.Thanks for looking.

EAR 834P MM/MC Phono stage .Superb sound. Superb condition. See pics for very slight signs of use . No Box or Instructions . Collection from DL7