Finally got the monoblocks finished up. New faceplates and some minor wire rerouting. Also swapped the interface material under the transistors with some thermal grease. That change plus the trial babysitters I constructed have made a huge difference. Thanks for the recommendation ZM!
Front plates are a play on the recent Sony DIY design. Went with a green led indicator in tribute to ZM 🙂
Hyper-FUGLY, Cody!! 😱

Everything FANTASTIC! "V" front panel il superb, layout and wiring perfect

naah
that's amp for SIssies
(damn, I got elkos for mine recently, soldered them on pcbs, and now I'm thinking that I have no idea where I put them
)
that's amp for SIssies

(damn, I got elkos for mine recently, soldered them on pcbs, and now I'm thinking that I have no idea where I put them

I'm excited to see the Larch! 😀 I'm also interested in playing with the 77B's in a common drain setup like Pa's at some point. That said, I can't imagine life without the Singing Bush now...
The Iron Pumpkin plays well with a Singing Bush and with the SissySITs. Fantastic synergism🙂🙂🙂🙂🙂🙂🙂🙂
Hmm… you have me thinking. I have one of the Iron Pre ‘prototype’ store boards that I need to build. Maybe I can do both 😀
do not
there is no back and there is no more, after Iron Pumpkin

(see it as shameful plug, blame Pa....... etc.
)
there is no back and there is no more, after Iron Pumpkin

(see it as shameful plug, blame Pa....... etc.

Wow. That's amazing. Congrats!

I noticed today that one of my green LEDs (buffer CCS ref, I think) burned out in the right channel. None of the key measurements have shifted, and I see no funny business happening. Important to replace immediately? If so, any specific 3mm greenie I'm looking for?
just compare voltage across LED string, between channels
that is IRF gate (or gate resistor) ref. to GND - practically series reg for buffer positive rail (so no CCS of any sort)
each LED is having ~1V93 drop, so you'll see it right away, if there is difference
funny - if one is Dodo in usual way - not conducting, all other shouldn't lit ...... so logic is that led in question is probably shorted - either gone short Dodo ( raaaaare occasion) or you messed up with shortie beneath
LEDs are generic 3mm diffuse Green, best possible as silent voltage references
check it and replace if needed
that is IRF gate (or gate resistor) ref. to GND - practically series reg for buffer positive rail (so no CCS of any sort)
each LED is having ~1V93 drop, so you'll see it right away, if there is difference
funny - if one is Dodo in usual way - not conducting, all other shouldn't lit ...... so logic is that led in question is probably shorted - either gone short Dodo ( raaaaare occasion) or you messed up with shortie beneath
LEDs are generic 3mm diffuse Green, best possible as silent voltage references
check it and replace if needed
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All set. I just went ahead and replaced it with another I had (a bit too tight for me to measure first). Didn't see any shorts on the backside, but once removed it does light and measure 1.7v. Possible it was lit, but just not shining like others.
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