Re: Those wonderful 1970's

In article , Tim Streater scribeth thus

SWMBO has a QUAD 33/303 combination for her study, just updated with new caps etc made in 1969 it was;!...

Yep got one of they, a B67 superb machine still makes an excellent tape;)..

As well as a few assorted Revox's which I must get round to e-baying sometime;!..

Yes, I really ought to do that too. Where did you get it done?

I have one too...refurbished by Quad a few years ago. Only thing I needed to fix was the capacitor across the mains input which let out its magic smoke a couple of years ago.

couldn't remember the name of the outfit.

Thanks - I may well pursue that. I should prolly get the crossovers on the IMFs done, though, also.

The hippies had imploded by the 70s.

Maxie, these bubble. I know nothing of these. How do they feel?

Servisol Super 10. Spray it, work it, leave it. Do it for three days and it cleans off the oxidation as well as displacing dirt and dried up grease. Whatever it is, it probably needs a day for each decade since manufacture.

I dumped a whole bunch of isopropyl in the Kenwood when I got it; it hadn't been run in years and all the switches and pots were having a major grump. But some proper switch cleaner would have probably* been better if I'd had any to hand (I did call a few places in the local town, but firstly it was sodding expensive and secondly it'd mean about a 20 mile round trip :-)

• although the IPA took care of it without too much fuss.

cheers

Jules

The RS switch cleaner of old was very simple - carbon tetrachloride with a small quantity of light oil, which was left behind after the carbon tet evaporated.

There were more effective switch cleaners for particularly stubborn cases, such as Electolube, but the RS stuff worked on most things.

You had to keep it well clear of plastic cabinets, etc., of course ...

Wasn't Electrolube the original name for Servisol Super 10 switch cleaning lubricant?

Completely different products, as far as I am aware.

Tim Streater :

AFAIK yes, but resoldering capacitors should be OK for a uk.d-i-yer I'd have thought. For my speakers Falcon sold complete crossovers with improved circuitry, which made the job a bit easier.

No, soldering is a magic art best left in the hands of a professional. ;-)

True, but these speakers are not small or light:

Bloody heavy in fact. And it's non-obvious how to get to the x-over too :-)

usually by removing the bass drivers.

Then normally the X over can be removed through that aperture.

Nice speakers..

Ah - so if I take out the driver I should be able to see the x-over? Presumably it'd only be the caps that need replacing?

Yes - had them since 1974. The Formica's coming adrift a bit near the corners but I can prolly reglue that and fix with escutcheon pins.

Thanks for that. If TNP's notion applies to my units, I may be able to do it myself (soldering's OK, but I couldn't face dismantling something that large).