SOLD - FOR SALE: JJ 828 INTERGRATED POWER Amp - push-pull class AB1 70 Watts
Item #649278305Info: JJ 828 INTERGRATED POWER Amp - push-pull class AB1 70 Watts
||Cash, Money Order, Money Wire, Interac/EMT
||38.00 (kg) Calculate Shipping
||62.00cm x 52.00cm x 29.00cm
||11 - New (?)
Jul 30, 17 7:13am (PST)
Edited: Jan 17, 18 8:04am
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Made with Cherry wood trim and cherry wood remote controller. Pictures don't do it justice - must be seen to appreciate it's beauty.
Bought it many years ago as a collectors item. Played less than 10 hours to checkout and adjust tube bias. Been boxed ever since. Have original invoice as proof for purchase verification
NOTE: Will guaranty or money back if not satisfied *******************************
SPECIFICATIONS for amplifier JJ 828 - integrated amplifier with remote control
70 Watts output power per channel using high quality components
- Five RCA inputs switched by signal relays
- Tape output RCA and 4, 8 Ohm output
- Dual independent power supply for each channel
- Ultra linear circuitry with KT 88 tube
- High operational current of KT 88 (75mA)
- KT88 cathodes feedback (CFB) via C-core type output transformers
the ECC 82 tubes are used as a phase inverter 1st stage while the ECC 99 tubes are used as a driver for the KT 88's. The ECC99 is a tube specifically developed by JJ Electronics for application as a unique linear driver for high power tubes
There are two feedback loops in this design: one is a global feedback from Output Transformer (- 6 dB) and the second is from the secondary cathode winding of the Output Transformer (5 dB).
The cathode winding feedback was what Mackintosh was famous for in all it's amps.
Output transformer is a C-core type which is superior to the normal E-I type
Each output transformer has four primary, four bifilar secondary and two feedback cathode windings.
Weight = 35 Kg -- Amplifier is made in SLOVAKIA - EUROPE -
In original heavy duty box with handles
PRICE NEGOTIABLE IF YOU PICK IT UP
ORIGINAL heavy duty BOX & FOAM, POWER CORD, REMOTE, All TUBES made by JJ ELECTRONICS
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