Push pull? What is the power output?
Yes, push pull. 2 x 15 Watt in pentode mode, 2 x 4.5 Watt in triode mode.
Flat from 24 Hz to 70 kHz at full output.
Yes, push pull. 2 x 15 Watt in pentode mode, 2 x 4.5 Watt in triode mode.
Flat from 24 Hz to 70 kHz at full output.
Great! What OP transformers have you used ?
FX200, you did an excellent job!!
Are you willing to publish the circuit diagrams also?
Thanks, yes i will share it - after i made the next days/weeks some final measurements on the Amp, and works a few hours well . I post it here - at the Moment you can see the Schematic for the Power supply an the control Board here: (sorry, only in german) : sweetLANA | 6AS7G | ECC83 OTL Headphone Amplifier – meccanica.audio
thxWow! Great work!
Me
Great! What OP transformers have you used ?
I wind them myself, using an EI 85 x 42 mm stack for wider bandwidth.
Attachments
FX200, that is a stunning build that you have there . . .
thanks - i tried my best ... my first Tube Amp but not my last
thanks - i tried my best ... my first Tube Amp but not my last
Well, a very good start that is. Looking forward to seeing more from you.
FX200 wrote:
"the Schematic for the Power supply an the control Board here: (sorry, only in german)"
Kein Problem. Ist für mich eine nette Übung.
After visiting your website I discovered that I have used the same schematic to make a headphone amp
with the 6H13 and and a Miniwatt E88CC. Will supply my final schematic soon (inclusive the supply with delayed "on"
6.3 V.).
"the Schematic for the Power supply an the control Board here: (sorry, only in german)"
Kein Problem. Ist für mich eine nette Übung.
After visiting your website I discovered that I have used the same schematic to make a headphone amp
with the 6H13 and and a Miniwatt E88CC. Will supply my final schematic soon (inclusive the supply with delayed "on"
6.3 V.).
Last edited:
Kein Problem. Ist für mich eine nette Übung.
It is not mine; I found the picture on Facebook and attached to show how to wire tube gear properly. The amp was not designed for military vibrations, but PCBs and resistors were oriented properly, for better heat dissipation. It is a Soviet school of design.
Attachments
Member
Joined 2009
Paid Member
Harry Joyce was one of those military style builders of amps.
FOR SALE - HARRY JOYCE 30 Watt Combo
"After assembly, each component, fastener, and solder joint was checked under magnification and marked with an identifying colour.
Each amp received a 48-hour test and burn-in and was then hand signed and serialized by Harry Joyce. "
FOR SALE - HARRY JOYCE 30 Watt Combo
"After assembly, each component, fastener, and solder joint was checked under magnification and marked with an identifying colour.
Each amp received a 48-hour test and burn-in and was then hand signed and serialized by Harry Joyce. "
Attachments
HIWATTHarry Joyce was one of those military style builders of amps.
Check out this one, it's a Parmeko tube amplifier . I found two of them in a scrap yard many years ago. Apparently is intended for military use.
Impressive!
Harry Joyce was one of those military style builders of amps.
No convection path for resistors, obstructed by boards.
are guitar amp work the back is upNo convection path for resistors, obstructed by boards.
are guitar amp work the back is up
No difference. It should be 90 degrees tilted for the best cooling.
- Home
- Amplifiers
- Tubes / Valves
- Photo Gallery