Mooly said:
Pyramid-V prototype. 2x80W nominal, Russian military tubes. MOSFET voltage regulators for filaments, screen grids, pre amp. This is a concert version, with grill top and TRS ins/outs. 0 dB input, outputs: 4, 8, 16 Ohm. Transformers custom made by EDCOR USA for 20 Hz - 20 kHz on full power.
Studio monitor version has a rack mount face plate; home stereo version has banana and RCA sockets.
The switch is for safety purposes.
Mooly said:
Thanks Karl!
It sounds really nice as well; now it works in my living room playing music through phased arrays made for concerts. I forgot to mention, it has a proprietary anti-clipping network with optical compressors. Ever clean sound.
Looks very nice and retro.
(though i rather spend my time keyhole peeping Veronica at Anatoliy's multi-culti forum, mind you)
(though i rather spend my time keyhole peeping Veronica at Anatoliy's multi-culti forum, mind you)
hello!
nice to see a good place. 😀
my amp is very simple, and gives good results.
it works 24/24 everydays since 3 years now.
nice to see a good place. 😀
my amp is very simple, and gives good results.
it works 24/24 everydays since 3 years now.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Hi edfed!
Nice work!
Can you tell something more about your amplifier?
Seeing the IC on input i guess that amplifier works on 2x15V, so it can give 18w per channel 🙂
Nice work!
Can you tell something more about your amplifier?
Seeing the IC on input i guess that amplifier works on 2x15V, so it can give 18w per channel 🙂
no way.
supply is +/-17V serial regulation, up to +/-18V for IC, up to +/-26V from transformer.
Rload is 4ohms
then, p = (16/sqr(2))² / 4 = 32 Watts RMS
if i use it in full bridge configuration, it will output many more.
p = (32/sqr(2))² / 4 = 128 Watts RMS
with only few common components.
the secret is in the power supply.
current limit, perfect regulation, what is 100HZ? i don't know.
4 big condos.
10000µF 40V lsr
supply is +/-17V serial regulation, up to +/-18V for IC, up to +/-26V from transformer.
Rload is 4ohms
then, p = (16/sqr(2))² / 4 = 32 Watts RMS
if i use it in full bridge configuration, it will output many more.
p = (32/sqr(2))² / 4 = 128 Watts RMS
with only few common components.
the secret is in the power supply.
current limit, perfect regulation, what is 100HZ? i don't know.
4 big condos.
10000µF 40V lsr
MF-A1
.my small power amplifier is the clone of MF A1.
.the capacitor bank.
regards:
gustOmO
.my small power amplifier is the clone of MF A1.
An externally hosted image should be here but it was not working when we last tested it.
.the capacitor bank.
An externally hosted image should be here but it was not working when we last tested it.
regards:
gustOmO
laipanda,
wow, very well executed. I have to concur with lineup - beautiful.
where did you get your front plate from?
wow, very well executed. I have to concur with lineup - beautiful.
where did you get your front plate from?
Edfed,
Can You post bigger pictures of amp, can not see the components values. I'm interested in this amp.
Thnx
Can You post bigger pictures of amp, can not see the components values. I'm interested in this amp.
Thnx
pirej:
i don't draw the power supply because it is too hard, and i have it in a harddrive somewhere.
power supply:
2 * 17 V
current limit 2 * 6 A
[message to owner of the board]
why isn't it possible to private message and edit posts?
An externally hosted image should be here but it was not working when we last tested it.
i don't draw the power supply because it is too hard, and i have it in a harddrive somewhere.
power supply:
2 * 17 V
current limit 2 * 6 A
[message to owner of the board]
why isn't it possible to private message and edit posts?
Motorola 100 w audio amp
..... my new amp from Motorola application note http://i36.tinypic.com/2u76jro.jpg 😀 alex mm
..... my new amp from Motorola application note http://i36.tinypic.com/2u76jro.jpg 😀 alex mm
Re: Motorola 100 w audio amp
6 output transistors = 100W Nice!!!
Do you have schematic of this Amp, PCB?
Regards zeoN_Rider
alex mm said:
6 output transistors = 100W Nice!!!
Do you have schematic of this Amp, PCB?
Regards zeoN_Rider
Re: Motorola 100 w audio amp
Thanks alex mm, here is linkxp@sezampro.yu
Regards zeoN_Rider
alex mm said:
Thanks alex mm, here is linkxp@sezampro.yu
Regards zeoN_Rider