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cjkpkg 30th July 2011 12:38 AM

SimpleSE heaven
Funny how we come full circle many times in life.

The SimpleSE was the first tube amp I ever built. I have built many amps since the SimpleSE but somehow I always end up coming back to it.

I started out cheap with OPTs and tubes and this allowed me to experiment and evolve as I learned more.

This latest iteration is as follows:
Edcor XPWR155 PT
Edcor CXSE25-4-5K
SS rectifiers
Mullard 12AT7 type
Electro Harmonix KT90
Jantzen Z Silver coupling caps 0.47uF
All else is pretty much stock

B+ is running 469
L Power Tube 101mA
R Power Tube 103mA

This is really the most nifty sounding amp I have - it would be a tough choice between this and my heavily modified Pass F5. I guess it would depend on how much auxilliary heat I needed :D

rknize 30th July 2011 02:48 AM

Since building it, my SSE gets the most use out of all my tube amps.

cjkpkg 30th July 2011 06:34 PM

Here she is atop the F5...combined with the old Aikido it sounds really sweet.
Those KT90s are freakin HUGE! The plate assembly must be 0.50" taller than a KT88. No Glow on the KT90s whatsoever at the above specs.

Sprags 11th July 2015 03:12 AM

Can you tell me why you chose the XPWR155 and CSXE25-4-5K as opposed to the XPWR035 and CSXE25-8-5K that were suggested on the TubeLab web site.

BillEpstein 6th August 2015 03:01 PM

Looks to me like the 155 omits the center-tapped filament supply and has 3, as opposed to 2 Amp 5V supply.

Both that horrrid blue, though :p

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