The Amp Garage

It does seem I'm seeing more frequent reports of problems with Heyboer's lately. Mostly mechanical buzzing.

What causes this, loose windings?

I got coupe of them like that which need to be re-potted. Hum bands were loose on them as well though tighten them didn't do much.

Another with Marstran transformers, has 0.1uf mustard caps & the .022uf are Sozo...

http://i270.photobucket.com/albums/jj10 ... C01022.jpg

David

Grey sounds different? lemme try it

I had just got the head and the tubes rattled a bit so I stuck foam strips between the the head & cab.

Late 1970 SLP with hats,I had a 69 that had em as well but can't find the pictures..

http://i270.photobucket.com/albums/jj10 ... ainers.jpg

Just a guess on my part but the special process might be that Ken was using a specific grade of groove tubes back then which would make bias adjustment unnecessary providing you pick the same grade of output tubes. Maybe this is why the -30 bias voltage for an original Express?

Nice, I like em all

Rob,

MB Electronics does have the 20 solid sold in 25 or 100 ft spools.

David

Does Radio Daze sell by the foot?

I got mine from MB Electronics, it's listed in the Express BOM, haven't looked a the Rocket BOM but it might be there as well...18AWG might be tight for those 9 pin sockets, 20 will do fine..

http://www.mbelectronics.com/

David

wsaraceni wrote:do any of the transformer companies redo their leads if you wanted to go that route?

IIRC someone here posted they had Heyboer do it, not sure on the price you'd have to contact them for the details.

I have some and they do sound nice and been holding up well.
Not sure what the going price is but that doesn't look like a bad deal & they appear in good condition.

You might be surprised in a good way.

judging from the ridges on the plates they look like Matsushita Japan

The New Steve H wrote:Do Metro and/or Marstran make their chassis in the US?

Yep

Gaz, Valvestorm sells Topcoat for $0.20 per foot & $18 for 100ft roll. It fits the description you wanted, PVC coated stranded wire, high voltage rating, pre-twisted and tinned :D IMO try the kit Jana mentioned to see if you like it before committing to a pile of the stuff provided 22 AWG is OK. David