Photo Gallery

[NesQuik]

My EICO HF-87

 

[azazello]

Very nice amplifier, curious as to what OT's you use in some kind of metal enclosure, which looks very nice.

Grid metal boxes for pencils for 1$. OTs are my development with South Korea iron.

 

[mhouston]

That amp has all the cred to be excellent. Nice.

 

[azazello]

Grid metal boxes for pencils for 1$. OTs are my development with South Korea iron.

One more New amp /now in USA/ PP QQE03/12 with pencils box for PT /for cooling/. Gas stabilization 6G4S Russian for second grids. 10 W per channel.

 

[davorin]

Small SEPP amplifier:

 

[Bas Horneman]

Small SEPP amplifier:

Nice!!!

 

[gaborbela]

Small SEPP amplifier:

Beautiful work! Excellent wood work, one think I would change if these nice looking amp (case) would be mine
I dont know what is the purpose of the Baltic birch, I would remove that from the top... I would hide that under the cover plate etc., the whole thing made out of nice solid wood and that Baltic does not match the rest of the case, for that reason I would hide that from the top. If is not possible or if now is too late I would use oak would veneer to cove the edge of that Baltic. These is my opinion only
One more time it is supper nice work, congrats!

 

[spswmsw]

PP amplifier.
Phase-splitter concertina 12SR7, second stage using Russian 12J1L (12Ж1Л) x 2, output stage using Russian 13P1S (13П1С) x 2.
PSU Russian 5Tz4S (5Ц4С) x 2, bias rectifier Russian 6H6S (6Х6С), gas regulators Russian SG-2S (СГ-2С) used to supply the screens of 12J1L.

 

[hectori]

Push Pull Amp, 4 x 6V6, 4 x 6SN7 and 2 83.
Output Transformer STANCOR NOS.

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An externally hosted image should be here but it was not working when we last tested it.

An externally hosted image should be here but it was not working when we last tested it.

 

[Shef]

Neat one. The trafos' bells look. .. sophisticatedly nice.

 

[mhouston]

Excellent

 

[rotaspec]

My builds and re-packages

Here are some of the projects I have recently completed, or still in process:

Pic 1: 6A3 SE driven by 6N9S, no feedback. Completed and sold.

Pic 2: 300B SE driven by 6N8S SRPP, running but not where I want it yet.

Pic 3a: 6360 tetrode PP, driven by 6N2P. Completed with a nicer knob now.

Pic 3b: Shanling 6N3P buffer/headphone amp.
I stripped out a faulty Shanling CDT-200 transport and re-used the tube buffer and HP amp PCBs, mains transformer and choke. Found a lookalike mini chassis on eBay and squeezed it all in. Built but not yet running.

Pic 4: 19AQ5 PPP experimental amp in development.

 

[Carlp]

Here are some of the projects I have recently completed, or still in process:

Pic 4: 19AQ5 PPP experimental amp in development.

I love the AQ5 family of tubes. Interesting arrangement of the output tubes. Nice work!

 

[soundbrigade]

Those mounting-"stuff" have been available at HiFi DIY Site - VT4C/211 Power Triode.
I have one of these for 4 6AQ5 and several others for single noval and octal sockets. The downside is that only "special" sockets fit.

 

[Sodacose]

Here is a 6V6 linestage I completed recently.

 

[hpeter]

neat

 

[rdf]

Here is a 6V6 linestage I completed recently.

6L6 regulated?

 

[Sodacose]

6L6 regulated?

6L6 is a shunt to cancel ripple across a resistor (1/Gm) but not DC regulated. This was a bit of an experiment to try Broskie's feed-forward shunt idea. Traded a choke for a tube. It worked well enough here and I'll probably try a DC regulated shunt down the line, too.

 

[mhouston]

Here is a 6V6 linestage I completed recently.

Neat build.

 

[brommermartin]

Test fase....SE-814 triode mode with 6E5P driver stage
Ale Moglia gyrator 6E5P load.
Rod Coleman bias supply .
Rod Coleman filament supply.
866 /6AX4 powersupply for the 814
AZ1 powersupply for the 6E5P drivers.
Its sounds incredible transparant and dead quiet.
Class A1 operation point 590V on the anode , 93MA.