• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

the small SE UL ECL 86 / EY 82

Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.
Hello all .

i started the small amplificator to ECL 86 and 2 EY82 Hybrid bridge ...

the look is Wood and Aluminium ...
 

Attachments

  • PICT7020.JPG
    PICT7020.JPG
    186.4 KB · Views: 310
  • PICT7021.JPG
    PICT7021.JPG
    214.9 KB · Views: 287
  • PICT7022.JPG
    PICT7022.JPG
    228.1 KB · Views: 280
  • PICT7026.JPG
    PICT7026.JPG
    175 KB · Views: 276
  • PICT7027.JPG
    PICT7027.JPG
    234.7 KB · Views: 288
Hallo!

I am sorry to say that the cabeling of your amp looks a little "wild".
I wonder, that there are no problems with oscillations.

"Wild" wiring can be better for reducing oscillations because there is less coupling between the wires compared to tidy "loomed" bundles. It will also shorten the wire length if it goes directly point to point which may be an advantage.

The disadvantage is of course that it does not look good, and may be more difficult to fault find and repair
 
hello ,

good job to mode PCL / PY ;)

Hallo!

Thanks a lot!

I build a PCL86 amp about 3 years ago, using a "wild" wiring.
That causes very bad oscillations.
I was not able to solve that problem, so i decided to use this time very short cables an do erverything possible to do not get oscillations.
 

Attachments

  • IMG_4817.JPG
    IMG_4817.JPG
    433.9 KB · Views: 94
Last edited:
hello ,

me ECL 86 is based to old build to ECC 83 / EL 84 ...

the wire negative ground is connected to noval support and negative HT , i use maximum plane for good T° and not HF for wire to BF ...

the old ECC 83 / EL 84 for good build to 1960' ... so not problèm to oscillation HF .

;)
 

Attachments

  • Ampli Stéréo EL84 - dessous - 31-03-2014.JPG
    Ampli Stéréo EL84 - dessous - 31-03-2014.JPG
    222 KB · Views: 75
Status
This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.