DAC90A w/change switch knob felt washer? - UK Vintage Radio Repair and Restoration Discussion Forum

ronbryan · 14th Jun 2008, 9:11 pm

Should the DAC90A wavechange switch knob have a felt washer behind it, like the volume and tuning controls?

Ron

kalee20 · 14th Jun 2008, 9:32 pm

Well, mine has!

It was rather fragile and falling to bits, so I found a way of making one. Brown felt is available in many haberdashers, a piece 200mm square and about 2mm thick cost me 50p. Cut a disc out of thin steel or aluminium with a hole in the centre, 15mm ID and 30mm OD, and clamp this to a sheet of strawboard, milboard, MDF or similar, with a piece of the felt sandwiched betwee. (Use 2 G cramps so as to keep the centre hole clear). Then using a sharp scalpel, trim round the metal template.

It does take time, but you do get a decent clean washer.

Sideband · 14th Jun 2008, 11:55 pm

Quote:

Originally Posted by ronbryan

Should the DAC90A wavechange switch knob have a felt washer behind it

Yes!

I'd make one up as described by Kalee.

Rich.

ronbryan · 15th Jun 2008, 12:14 am

Thanks Kalee and Richard for your prompt replies. I've managed to find some brown felt already, so I just need to get a 30mm mudguard washer - so far I've only found 25mm and 40mm ones, but I must have something suitable somewhere.

Ron

igranic · 15th Jun 2008, 9:11 am

Ron,

I think I have some ready-made, left over from a DAC90A restoration. If I can find them I can either post or bring to Wootton Basset.

Edward

14th Jun 2008, 9:11 pm	#1
ronbryan Octode Join Date: Jan 2003 Location: Guildford, Surrey, UK. Posts: 1,960	DAC90A w/change switch knob felt washer? Should the DAC90A wavechange switch knob have a felt washer behind it, like the volume and tuning controls? Ron

14th Jun 2008, 9:32 pm	#2
kalee20 Dekatron Join Date: Feb 2007 Location: Lynton, N. Devon, UK. Posts: 7,087	Re: DAC90A w/change switch knob felt washer? Well, mine has! It was rather fragile and falling to bits, so I found a way of making one. Brown felt is available in many haberdashers, a piece 200mm square and about 2mm thick cost me 50p. Cut a disc out of thin steel or aluminium with a hole in the centre, 15mm ID and 30mm OD, and clamp this to a sheet of strawboard, milboard, MDF or similar, with a piece of the felt sandwiched betwee. (Use 2 G cramps so as to keep the centre hole clear). Then using a sharp scalpel, trim round the metal template. It does take time, but you do get a decent clean washer.

15th Jun 2008, 12:14 am	#4
ronbryan Octode Join Date: Jan 2003 Location: Guildford, Surrey, UK. Posts: 1,960	Re: DAC90A w/change switch knob felt washer? Thanks Kalee and Richard for your prompt replies. I've managed to find some brown felt already, so I just need to get a 30mm mudguard washer - so far I've only found 25mm and 40mm ones, but I must have something suitable somewhere. Ron

15th Jun 2008, 9:11 am	#5
igranic Rest in Peace Join Date: Jan 2005 Location: North Bedfordshire, UK. Posts: 395	Re: DAC90A w/change switch knob felt washer? Ron, I think I have some ready-made, left over from a DAC90A restoration. If I can find them I can either post or bring to Wootton Basset. Edward