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

Tractorfan · 24th Oct 2017, 5:30 pm

Hi,
Good news!!
Having received some AC188 transistors from a very kind forum member, I finally had a couple of hours to spare to fit them. And they work!
The replacements weren't inside aluminium blocks, so I fitted three copper slide-on heat sinks instead. The motor now starts reliably every time. All I have to do now is fit the PCB back in place and reassemble the tape recorder.
Many thanks for all your help and advice. All appreciated and and very educational.
Cheers, Pete.

24th Oct 2017, 5:30 pm	#25
Tractorfan Dekatron Join Date: Mar 2008 Location: St. Frajou, l'Isle en Dodon, Haute Garonne, France.(Previously: Ellesmere Port, Cheshire, UK.) Posts: 3,184	Re: Old Uher 4000 motor problem. Hi, Good news!! Having received some AC188 transistors from a very kind forum member, I finally had a couple of hours to spare to fit them. And they work! The replacements weren't inside aluminium blocks, so I fitted three copper slide-on heat sinks instead. The motor now starts reliably every time. All I have to do now is fit the PCB back in place and reassemble the tape recorder. Many thanks for all your help and advice. All appreciated and and very educational. Cheers, Pete. __________________ "Hello?, Yes, I'm on the train, I might lose the signal soon as we're just going into a tunn..."