spavleski said:
Workie, workie
steenoe said:
those two boxes looks too sissssssy 😉
I hope that you boyz will put 'nuff holes in both lower and upper plate(s)
Pumpie is burnin' some 30++ Watts ...... overall .
Pumpkin volume control
So Mr. Steen, do I see potentiometers in place of the Twisted Pear stepped volume control and input-output boards?
Would you care to elaborate on the changes and effects on sound, if any? I would like to benefit from your experience and reasons for the changes. . .
Thanks!
Steve Z
steenoe said:
So Mr. Steen, do I see potentiometers in place of the Twisted Pear stepped volume control and input-output boards?
Would you care to elaborate on the changes and effects on sound, if any? I would like to benefit from your experience and reasons for the changes. . .
Thanks!
Steve Z
Re: Pumpkin volume control
naah
don't count too much on his xperience ........ on next pic you'll see flies instead of pot
(talking about ........ once I mounted watering can instead of TV antenna on the roof , naturally with antenna cable connected to it ........ just to tease my neighbors .......... they have strange look few days ............
)
zettelsm said:
naah
don't count too much on his xperience ........ on next pic you'll see flies instead of pot
(talking about ........ once I mounted watering can instead of TV antenna on the roof , naturally with antenna cable connected to it ........ just to tease my neighbors .......... they have strange look few days ............
)
Steenoe's Pumpkin revised
Looking closer I see he had done away with input and output connectors too. Very nice trick -- two less connectors in the signal path. In fact, there are no connectors or controls anywhere on the new box! 😀
Steve Z
Looking closer I see he had done away with input and output connectors too. Very nice trick -- two less connectors in the signal path. In fact, there are no connectors or controls anywhere on the new box! 😀
Steve Z
Completed !!!! Working !!!!
Now, most probably, the doctors would have to come to "take off" the constant smile from my face 😀
Now, most probably, the doctors would have to come to "take off" the constant smile from my face 😀
@Zen, Pot problem with "Crrrr" during rotation has gone after setting Bias to ZERO.
T H A N K S !!!😉
T H A N K S !!!😉
Zen Mod said:
not likely "BIAS" .........
"offset" ..........more likely .........
Yes, "Biasing" the offset ;-)
@Zen - Ziv mi ti - ocekuj peceno prase ako moze da se posalje City Expressom 😉
For other colleagues - Sorry for Serbian language
For other colleagues - Sorry for Serbian language
@Zen...You know what's behind the loudspeaker?
...
...
... 300B SE Tube Amp...
... Now one can imagine the sound of Pumpkin...
...
...
... 300B SE Tube Amp...
... Now one can imagine the sound of Pumpkin...
Magura said:
I am not appropriate person to answer, because I have Alepx J modification by Zen - BablelFish - Comparing to him, Pumpkin is quite cold 😉
I have some holes on top anyhow...
@Magura - No problem. I can do that.
What temp. are You insterested in - where would you like to be measured?
What temp. are You insterested in - where would you like to be measured?
Temp inside the box, temp of respective active devices.....
Wondering if you're walking the line, or there is still some headroom in such a layout without much ventilation.
Magura 🙂
Wondering if you're walking the line, or there is still some headroom in such a layout without much ventilation.
Magura 🙂
Hi Guys,
Now that my plitron "Over Kill trafo" has pretty much turned into "kill trafo", I need to find other sources for a transformer.
Has anybody successfully used the Apex Jr Mercury Magnetics TA110-W? Which other trafos have you guys been using?
Thanks,
Dinesh
Now that my plitron "Over Kill trafo" has pretty much turned into "kill trafo", I need to find other sources for a transformer.
Has anybody successfully used the Apex Jr Mercury Magnetics TA110-W? Which other trafos have you guys been using?
Thanks,
Dinesh
dviswa said:
why not - if you use two of them , to have twice 40Vac
you can always ask AR2 which one from Apex he use
Apex Jr TA110-W transformer
I am going to use the MM TA110-Ws for my Pumpkin-Shunty AC power supply. Doing a quick hookup to check voltage, two MM TA110-Ws can be hooked up to supply a nominal 40V - 0 - 40V or 48V - 0 - 48V, the latter too much probably for all but the lowest of line voltages -- Japan perhaps @ 100VAC line.
The transformers appear to be good quality E-I core and should have no problem supplying the required current to a stereo pair of preamp-regulators. In typical DIY overkill fashion, I picked up 4 of the TA110-Ws so I can go dual-mono. 😎
The price is certainly very right!
Steve Z
dviswa said:
I am going to use the MM TA110-Ws for my Pumpkin-Shunty AC power supply. Doing a quick hookup to check voltage, two MM TA110-Ws can be hooked up to supply a nominal 40V - 0 - 40V or 48V - 0 - 48V, the latter too much probably for all but the lowest of line voltages -- Japan perhaps @ 100VAC line.
The transformers appear to be good quality E-I core and should have no problem supplying the required current to a stereo pair of preamp-regulators. In typical DIY overkill fashion, I picked up 4 of the TA110-Ws so I can go dual-mono. 😎
The price is certainly very right!
Steve Z