My PCL86 SE amp - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

ValvoStef · 15th May 2020, 9:58 am

AdrianH just pointed out a mistake I made with regards to the rectifier valves, they are of course PY801 and not 802. Thanks Adrian.

ValvoStef · 18th May 2020, 8:37 pm

So, I did what Torben suggested, connected the unused pentode in parallel with the output pentode. The result was more output power, but heavily distorted. The power supply has plenty of spare capacity so I suspect the output transformer is not up to it. Suppose it would make a nice heavy metal guitar amp. I might try this again with another transformer, I have somewhere a Grundig EL84 transformer, but where?

15th May 2020, 9:58 am	#21
ValvoStef Hexode Join Date: Mar 2014 Location: Fareham, Hampshire, UK. Posts: 482	Re: My PCL86 SE amp AdrianH just pointed out a mistake I made with regards to the rectifier valves, they are of course PY801 and not 802. Thanks Adrian. __________________ Failing to prepare is preparing to fail ...

18th May 2020, 8:37 pm	#22
ValvoStef Hexode Join Date: Mar 2014 Location: Fareham, Hampshire, UK. Posts: 482	Re: My PCL86 SE amp So, I did what Torben suggested, connected the unused pentode in parallel with the output pentode. The result was more output power, but heavily distorted. The power supply has plenty of spare capacity so I suspect the output transformer is not up to it. Suppose it would make a nice heavy metal guitar amp. I might try this again with another transformer, I have somewhere a Grundig EL84 transformer, but where? __________________ Failing to prepare is preparing to fail ...