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    Building, troubleshooting and testing of these amplifiers should only be
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What is better than one audioromy M-828A FU29?

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J

jhin

Member
Joined 2011
What is better that one audioromy M-828A?

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:):):):)

One audioromy for the 8'
One audioromy for the 4' and 1'

:D:D:D
 
M

milosz

Member
Joined 2006
Ha! A man after my own heart! I have an Audioromy FU-29 amp, love it. Great little amp, bargain of the century. And because the FU-29 / 829 / 2E29 tube is not used anywhere these days, you can get NOS RCA 829's for $15. Just can't go wrong with this amp. The sound is really wonderful.
 
TonyTecson

TonyTecson

Member
Joined 2003
rmb said:
Use a heat radiating connector on the 5894 anode connection...
Click to expand...

yes, in one of the units i repaired the nylon pin cover got burned in time...
other issues with this amp is red plating, that is why i will use the 5894 instead...
another thing i did with this amp is to convert this into a cathode resistor bias...

also the power switch do not last long, replacing it with a better quality one is step in the right direction...
 
M

milosz

Member
Joined 2006
Plate Caps

Early version of this amp had plastic plate pin connectors. Current production (like mine-) have ceramic plate caps.

Never saw plates glowing red on mine.

I know two users of this amp - my pal Mike, who has used his daily for 4 years, and me, I've used mine daily for about 18 months. Neither of our power switches have shown any indication of failure- maybe later production has been changed to higher capacity switches?
 
kevinkr

kevinkr

Administrator
Joined 2004
kta-hifi.net
Paid Member
This might be something I will investigate when I get mine. Given the extremely modest price (I wasn't kidding in that previous remark) I am sure the transformers are just "good enough."

I used to have a pp 300B amplifier OEM'd in China and was very surprised at the relatively good quality of the output transformers which were wound in house.
 
Koifarm

Koifarm

Banned
Joined 2005
I had yaqin ms300b amp before the audioromy 838. And like the audioromy now for 10 years. I have replaced the driver tube for 6n6p and removed the volume potmeter.
Did a lot of tuberolling but origenal FU-13 with ribbed plates are best.

Some measurements:

Power at 1% distorsion = 23.6 Watt rms. at 8ohm.
Freq. respons +/- 0.5db = 22Hz to 27kHz.
 
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