if you got positive offset, 2N1099 wasn't conducting, so likely not Dodo
observe that pinout is shown from unten
edit ..... gently warm, in 5 seconds!
damn Greenhorns
observe that pinout is shown from unten
edit ..... gently warm, in 5 seconds!
damn Greenhorns
Oh Mighty ZenMod - What is the correct part for M101?
I powered mine up and offset voltage is not good - close to the power rail.
M102 bias adjusts and it is warm but 2N1099 is cold.
Looking over the schematic I see the part for M101 is not specified.
Zenmod's Pack list has IRF9510-2pcs which must be M101.
But I think I got IRF-510's.
I've ordered IRF-9510's from Digikey and will try again when they come.
I powered mine up and offset voltage is not good - close to the power rail.
M102 bias adjusts and it is warm but 2N1099 is cold.
Looking over the schematic I see the part for M101 is not specified.
Zenmod's Pack list has IRF9510-2pcs which must be M101.
But I think I got IRF-510's.
I've ordered IRF-9510's from Digikey and will try again when they come.
Attachments
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Naa, not in the first run, later/after setting it to 80+ mV!
[emoji56]
Edit: @banderson546 do we seem to be in the same boat? (Nasty offset+cold begun)?
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no problem Dennis
generally I prefer to use those with smaller type No. simply because they're lower voltage devices so having lesser capacitances
here, used as source follower, no big deal
generally I prefer to use those with smaller type No. simply because they're lower voltage devices so having lesser capacitances
here, used as source follower, no big deal
well, if you got (from me) 510 instead of 9510, that is all mine mistake (though, you can still blame Pa, core of my negligence being what his influence made of me - constant multitasking)
it must be IRF9510
I believe that nothing is gone Dodo due to unfortunate swap, but if did, just buzz me and I'll send what's needed
🙁
so, tip also for myleftear - check IRF number
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This would be… amazing.
And still, I consider myself the leader of the pack (regarding botching around)—the second-greenhornyest greenhorn or so!
And still, I consider myself the leader of the pack (regarding botching around)—the second-greenhornyest greenhorn or so!
This would be… amazing.
And still, I consider myself the leader of the pack (regarding botching around)—the second-greenhornyest greenhorn or so!
I'm still calling recheck of Ge wiring in your amp
can't see where locating pin is, on your picture
OK, ZM majorly ooked up ......... but - you got complete packing list (I'm using as list , checking each item with dot when put in bin), where it is written IRF9510
I know you trust me ....... but you know what Dr. Haus always sez - "everybody lies!"
I know you trust me ....... but you know what Dr. Haus always sez - "everybody lies!"
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I would follow you down/up to the OTL-phono-pre!
(Problem on my side is that I don’t know where to stop following and where to just close my eyes and carry on, and since 1 „greenhorn“ a day but not more should be ok for both of us, I sometimes close eyes once too much—not least because the geniuses—you included—are quite relaxed about substitutes)
Conclusion: as long as nothing went through the roof, I consider all as good. Except that having an old soul (for dinner) on the bench without knowing how good it‘ll sound is a bit a sort of very sophisticated torture [emoji83][emoji1782]
Bon apetit!
(Problem on my side is that I don’t know where to stop following and where to just close my eyes and carry on, and since 1 „greenhorn“ a day but not more should be ok for both of us, I sometimes close eyes once too much—not least because the geniuses—you included—are quite relaxed about substitutes)
Conclusion: as long as nothing went through the roof, I consider all as good. Except that having an old soul (for dinner) on the bench without knowing how good it‘ll sound is a bit a sort of very sophisticated torture [emoji83][emoji1782]
Bon apetit!
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Friends,
Quite off topic I know, but…
During my lunch break I was reading along and bam! Mr borbely recalls using „Philips germanium transistors“…
Hihi
The Borbely Annals - An Interview with Erno Borbely By Jan Didden | audioXpress
Quite off topic I know, but…
During my lunch break I was reading along and bam! Mr borbely recalls using „Philips germanium transistors“…
Hihi
The Borbely Annals - An Interview with Erno Borbely By Jan Didden | audioXpress