I think that this amp has regulated power supply, phono stage and tone controls and maybe some other features due to number of tubes and front panel controls?
The amplifier has 3 power supply regulators, one for 100TH and one per channel for input stage and driver.
the knob in the front are:
2 for 316A bias regulation
1 for select 100TH or 316A bias indication
1 for input selection
1 volume
1 power switch.
No phono or tone control
Next my experiment - SE UL 6LR8-Phillips USA. /OT 3 kohm, Ia - 55 ma, Ua-c - 235 v, auto bias-560 ohm, Pout - about 4 wt per channel/. I'd like to advice You to try.....Vices are 3 foots forward.
https://picasaweb.google.com/109570777566485968551/Amplifiers#6002949693900202850
https://picasaweb.google.com/109570777566485968551/Amplifiers#6002949693900202850
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90w MonoBlock build thread on new PCB's
Hi
I have always been a fan of these mono block amplifiers via velleman .. both the el34 and kt88 version.
Velleman have long since stopped production of these years ago .. I purchased their last 27 boards they had in stock. I have now since decided to make my own new production boards (Velleman where ok) but the issue was that these boards where made before Gerber files.
So after some hard work I produced the artwork the old fashion way then painstakingly converted to a full Gerber file so I can get them made again.
My new boards are fully drilled with 2oz copper tracks. This is the 1st production board being populated, with the wire links 1st .. I will update more on the progress of the first board. This will be A 90w EL34 version. The new PCB boards are thicker as well so no flex ..
Hi
I have always been a fan of these mono block amplifiers via velleman .. both the el34 and kt88 version.
Velleman have long since stopped production of these years ago .. I purchased their last 27 boards they had in stock. I have now since decided to make my own new production boards (Velleman where ok) but the issue was that these boards where made before Gerber files.
So after some hard work I produced the artwork the old fashion way then painstakingly converted to a full Gerber file so I can get them made again.
My new boards are fully drilled with 2oz copper tracks. This is the 1st production board being populated, with the wire links 1st .. I will update more on the progress of the first board. This will be A 90w EL34 version. The new PCB boards are thicker as well so no flex ..
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