UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Half a Mullard · 16th Mar 2018, 12:34 pm

I would check the HT as Graham suggests.

I have looked at my own set to check the voltage adjustment. Yours would appear to be adjusted for the 250v setting. The connections would be reversed for 230v. The red wire connects to the mains switch and you should find that the blue wire connects directly to the anode of the UY85 (pin 9)

The other resistors you mention (R34 and R36) are in the heater chain so shouldn't affect the HT.

16th Mar 2018, 12:34 pm	#50
Half a Mullard Hexode Join Date: Mar 2012 Location: East Yorkshire, UK. Posts: 354	Re: Bush VHF 81 Restoration I would check the HT as Graham suggests. I have looked at my own set to check the voltage adjustment. Yours would appear to be adjusted for the 250v setting. The connections would be reversed for 230v. The red wire connects to the mains switch and you should find that the blue wire connects directly to the anode of the UY85 (pin 9) The other resistors you mention (R34 and R36) are in the heater chain so shouldn't affect the HT. __________________ Howard