Replacement Power Transformer for a Univox Amp

[earache]

Hello All

I have a Univox 155 amp that has a transformer that hums and I would like to replace it. What is a suitable replacement for this amp that has a separate tap for the rectifier, which is a 6CA4?

Thanks In Advance

[Dave Curtis, dB AudioTech]

Have you replaced the power supply caps yet? If not, do that first and see if it still hums.

[Jazz P Bass]

It may also be a lamination hum.(which could be aggravated by the bad caps)

[earache]

Yes, I have replaced all of the power filtering electrolytics, and even stepped up the values a little.

[earache]

Yes, I have replaced all of the power filtering electrolytics, and even stepped up the values a little.

Bump - anyone got any ideas or past experience with this type of amp problem?