Show us your flea-watts amps!
- Thread starter davidro
- Start date
Started out as a Magnavox 8600 but applied Dave G's mods to it and the amp was transformed. I really like this little guy, seems to punch a bit above its weight class. Great sound at 4 wpc running into Klipsch Chorus speaks.
Guilty too. Just built last weekend . I have to get efficient speakers
grillebilly
Empty Head
My boy got me this APPJ Mini Watt amp. I use it in the love nest with a Zune and Boston Acoustics CR 65's. It's 3.5 watts. It's great for putting on some spacey tunes and drifting off to sleep after a hard night of partying. file photo.
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primosounds
Powered with pure tube sounds.
Here is an amp built off of Keggar's SE 6L6 with 6SL7 driver tube circuit. It has a CLCLC power supply filter with only film caps. I guess 6 watts is pushing the "flea" designation but this amp is certainly one of the better sounding amps to get plugged into the Altec 19s.
The other amp is based on the controversial RH84 circuit. Alex Kitic's prickly personality, aside, his circuit is certainly an excellent sounding one and Keggar'
s amp is a riff off of his circuits. It is also CLCLC power supply with 2 film caps but a larger capacitance electrolytic for the final C. The cathode bias cap is a high quality electrolytic bypassed with a film cap.
The other amp is based on the controversial RH84 circuit. Alex Kitic's prickly personality, aside, his circuit is certainly an excellent sounding one and Keggar'
s amp is a riff off of his circuits. It is also CLCLC power supply with 2 film caps but a larger capacitance electrolytic for the final C. The cathode bias cap is a high quality electrolytic bypassed with a film cap.
Holy cow,
That's a busy topside.
OTOH, The bottom isn t as busy as I thought It'd be.
Poultrygeist
Lunatic Member
Single ended Rotel EL84 receiver.
Poultrygeist
Lunatic Member
Dared 2a3
Poultrygeist
Lunatic Member
Poultrygeist
Lunatic Member
2a3 Bottleheads
Poultrygeist
Lunatic Member
8 watt TPA3110
. For now, Rat Rod, for the win.
BinaryMike
Pelagic EE
May as well post my Bolide project here:
The Bolide low-voltage SET breadboard develops about 1.5W output using $4 worth of tubes from the dollar bin at ESRC, and a $12 OPT, operating on a 96V B+ rail that comes from a pair of low-cost 48V switch-mode power supply modules. It sounds good, but I haven't convinced myself that it's worth committing to a complete chassis build. I'll attach the amplifier schematic below. Whaddya think? Is there any interest in low-voltage flea power designs like this?
The Bolide low-voltage SET breadboard develops about 1.5W output using $4 worth of tubes from the dollar bin at ESRC, and a $12 OPT, operating on a 96V B+ rail that comes from a pair of low-cost 48V switch-mode power supply modules. It sounds good, but I haven't convinced myself that it's worth committing to a complete chassis build. I'll attach the amplifier schematic below. Whaddya think? Is there any interest in low-voltage flea power designs like this?
primosounds
Powered with pure tube sounds.
Yeah, the big round cylinder is a milspec choke , the unusual thing is that it is potted and sealed with a ceramic disc. Talk about overkill! The other cylinder is a film cap that i painted to match the other parts.
The 6L6 amp is cleaner top side and stuffed with film caps on the bottom. That amp sounds sublime on my speakers. I was playing "Pearl Jam" the other day and you know how Eddie Vedder sounds like he mumbles his words well i heard his voice much clearer and could hear all the lyrics.
