DYNATRON HFC77 schematic / transformer - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

radio88 · 2nd Oct 2020, 10:22 pm

Quote:

Originally Posted by Ed_Dinning

Quite a big beast, certainly rewindable, but cheaper if you can get something close to your spec; no shortage of spave to fit things either

Ed

thanks

radio88 · 5th Oct 2020, 6:31 pm

Update:
I changed 2 electrolytic capacitors on the power board and put in a new transformer for the 31 v side.
In fact I ended up using a 3 amp 28 volt transformer and the radio and record player is working very well " I will add another transformer for the 5.8v lighting later.

thanks to everyone for the help

Nuvistor · 5th Oct 2020, 8:04 pm

Good news, I presume then that the rectifier was ok.

radio88 · 5th Oct 2020, 8:45 pm

Quote:

Originally Posted by Nuvistor

Good news, I presume then that the rectifier was ok.

yes the bridge was fine

5th Oct 2020, 6:31 pm	#22
radio88 Triode Join Date: Feb 2020 Location: London, UK. Posts: 21	Re: DYNATRON HFC77 schematic / transformer Update: I changed 2 electrolytic capacitors on the power board and put in a new transformer for the 31 v side. In fact I ended up using a 3 amp 28 volt transformer and the radio and record player is working very well " I will add another transformer for the 5.8v lighting later. thanks to everyone for the help

5th Oct 2020, 8:04 pm	#23
Nuvistor Dekatron Join Date: Aug 2013 Location: Wigan, Greater Manchester, UK. Posts: 9,431	Re: DYNATRON HFC77 schematic / transformer Good news, I presume then that the rectifier was ok. __________________ Frank