Brief description:
Four 6L6GC per amplifier, partial cathode feedback/UL output transformer. Driver: E182CC; first stage and phase splitter: ECF80; input buffer: ECC85 (shared). Shared choke input power supply of 600V for power anodes, regulated down to 500V for rest of circuit (regulators to near right of underside view). Power tubes operated fixed bias by way of regulated sinks in cathode circuits (on near left of underside view). These also incorporate over-current power dumping sensors.
.... and the blank part on the left front panel is not poor aesthetics - awaiting an engraved logo.
Regards ....
and my admiration for some utterly professional work displayed here!
Four 6L6GC per amplifier, partial cathode feedback/UL output transformer. Driver: E182CC; first stage and phase splitter: ECF80; input buffer: ECC85 (shared). Shared choke input power supply of 600V for power anodes, regulated down to 500V for rest of circuit (regulators to near right of underside view). Power tubes operated fixed bias by way of regulated sinks in cathode circuits (on near left of underside view). These also incorporate over-current power dumping sensors.
.... and the blank part on the left front panel is not poor aesthetics - awaiting an engraved logo.
Regards ....
and my admiration for some utterly professional work displayed here!
Two stage 6267 stereo preamp (for record player) with separate power supply. The transformer on the preamp (on the wall) isn't used since it causes hum in the preamp when used in a power supply for the preamp.
Its similar to this http://www.vintageradio.me.uk/amplifier/mullardpreamp.htm
Its similar to this http://www.vintageradio.me.uk/amplifier/mullardpreamp.htm
Attachments
Hi Johan !Johan Potgieter said:
Oh..!
It so not like DIY, Im thinhk thats for DI(A).
Thats idea ( Do its for All ) The soud same looklike its?
what your system setup with its ?
HDaudio,
Although there is a separate discussion forum, I will briefly reply here. This amplifier is not part of my house system, which is actually an integrated transistor amplifier (also my own design/build) plus the rest. This tube job was designed after a request by a friend, to fall in the "high end" bracket. (I do not have a commercial business but design/build/sell upon request.) There is at present nothing to go with it - that is the customer's (commercial) preference, although I was asked for a pre-amp by some.
Should you want to know more, kindly ask on the Photo Discussion forum.
Thanks for your interest and kind remarks.
Although there is a separate discussion forum, I will briefly reply here. This amplifier is not part of my house system, which is actually an integrated transistor amplifier (also my own design/build) plus the rest. This tube job was designed after a request by a friend, to fall in the "high end" bracket. (I do not have a commercial business but design/build/sell upon request.) There is at present nothing to go with it - that is the customer's (commercial) preference, although I was asked for a pre-amp by some.
Should you want to know more, kindly ask on the Photo Discussion forum.
Thanks for your interest and kind remarks.
Hello Guys
@ Johan
Some very high build standards here! My admiration knows no bounds😀
bulgin
@ Johan
Some very high build standards here! My admiration knows no bounds😀
bulgin
6C45P-6B4G-GM70 Monoblock SET amp.
Hi,
This is my new set amplifier working very well but, still not finished. Input tube 6C45P is direct connected to Svetlana 6C4C then intertage and GM70 output tube. 6C4C and GM70 tubes working with fixed negative bias. No coupling caps used. Power supply unit contains high voltage power mosfets. I did not use any choke transformers. Sound is amazing natural and very delicious. Mids, bass and higs all gives me satisfaction. I am listening it with NADC542 and Tannoy Saturn S10 loudspeakers. When comparing with my parallel SET ecc83+EL34 amplifier, GM70 gives me incredible open and lovely sound. Live concerts in my room now!
http://img530.imageshack.us/my.php?image=hpim4208le3.jpg
http://img242.imageshack.us/my.php?image=hpim4170hy8.jpg
http://img242.imageshack.us/my.php?image=hpim4161rk6.jpg
Hi,
This is my new set amplifier working very well but, still not finished. Input tube 6C45P is direct connected to Svetlana 6C4C then intertage and GM70 output tube. 6C4C and GM70 tubes working with fixed negative bias. No coupling caps used. Power supply unit contains high voltage power mosfets. I did not use any choke transformers. Sound is amazing natural and very delicious. Mids, bass and higs all gives me satisfaction. I am listening it with NADC542 and Tannoy Saturn S10 loudspeakers. When comparing with my parallel SET ecc83+EL34 amplifier, GM70 gives me incredible open and lovely sound. Live concerts in my room now!
http://img530.imageshack.us/my.php?image=hpim4208le3.jpg
http://img242.imageshack.us/my.php?image=hpim4170hy8.jpg
http://img242.imageshack.us/my.php?image=hpim4161rk6.jpg
Here's my Transcendent T8 OTL chassis with the valves plugged in.
It just needs the power supplies building and it'll be finished.
The sort of amp George Jetson might have in his den.😀
Steve
It just needs the power supplies building and it'll be finished.
An externally hosted image should be here but it was not working when we last tested it.
The sort of amp George Jetson might have in his den.😀
Steve
Steve,
Quite original (if not wood, then the design). Suppose it depends on taste, but I certainly like it.
Underside?
Quite original (if not wood, then the design). Suppose it depends on taste, but I certainly like it.
Underside?
Steve Cresswell said:
Well that is very unique. You probably did not realize you had designed an amp that would be a perfect mate to a unique vintage TV called the Kuba Komet. http://www.tvhistory.tv/KK.JPG
http://www.tvhistory.tv/Kuba-Komet.htm
Steve Cresswell said:
Stave,
I hope you are going to take it to the UK DIYAudio meet this weekend.
Andy
OH !
Hi Steve Cresswell !
Im lik.. its, So the firt time Im see OTL ampli have design like thats
thats mind Tube with mini Bed ! same bed for jerry mouse..
See you with another photo!
😀
Hi Steve Cresswell !
Im lik.. its, So the firt time Im see OTL ampli have design like thats
thats mind Tube with mini Bed ! same bed for jerry mouse..
See you with another photo!
😀