Fleetwood model 4068... Advice?

[Reece]

So sorry about your father, a tragedy. We never know what may happen to us.

You should be OK with your Pioneer tuner. What I would do first is plug the AC of both of them in and turn them on without connecting the audio jacks yet. See if you get any significant voltage (low AC volts range on meter) between the outer shell of the plug from the tuner to the outer shell of the jack on the Fleetwood. Try turning one AC plug over and recheck, ditto on the other AC plug. Choose the combination that gives the least voltage (if any.) Should only be just a handful of volts.

If it happened to be more than that, I might consider putting a .1 mfd cap in the shield line between the units.

[VintagePC]

I've only got to do half that, at most... the console has a polarized line cord on it per electroking's suggestion

I hadn't thought about the AC isolation, but good suggestion!

Edit: Just started varnishing the veneer. It looks incredible... Part of it is that well-aged wood doesn't need stain to get a deep natural colour... and this veneer has been exposed to air for _at least_ 30 years, and likely more.

[VintagePC]

Heh.. I ended up doing a "why knot" resistor replacement... There were a few left to replace that were iffy and I didn't have spares for... but then I had their solder knots untangled and figured "why not?" and replaced all of the other ones in that knot... leading to more knots... and so on.

[VintagePC]

We're looking at about 38VAC with a fully grounded input (3-prong cord)... and about 6V with the tuner. I've put the (orange drop) cap in anyway.

Of course, I've got everything back in the cabinet, and this is the moment that the balance issue (nothing on the right channel) chooses to resurface. DAMMIT.

Time to hunt that down... I think it may be wiring... I hope we haven't lost a tube.

Originally Posted by Reece

So sorry about your father, a tragedy. We never know what may happen to us.

You should be OK with your Pioneer tuner. What I would do first is plug the AC of both of them in and turn them on without connecting the audio jacks yet. See if you get any significant voltage (low AC volts range on meter) between the outer shell of the plug from the tuner to the outer shell of the jack on the Fleetwood. Try turning one AC plug over and recheck, ditto on the other AC plug. Choose the combination that gives the least voltage (if any.) Should only be just a handful of volts.

If it happened to be more than that, I might consider putting a .1 mfd cap in the shield line between the units.

Edit:
D'oh.. feel like an idiot. Nearly pulled the chassis (somewhat of a pain in this set b/c you have to hold it or it falls out when you take out the last screw... putting it back in is also a one-handed jobbie) before it occurred to me to double check the speaker wiring.

On the back of the set there's a terminal strip which has RCA outputs for external speakers (and hardware to sense their connection).

Each terminal strip has 2 connections. However, only ONE of these connections is actually connected to the amp output... the other is not connected. You can infer what happened when I re-wired the speakers.

Anyhoo... all is well now. Got 'er playing and it sounds great.



Yes, I know that
:

so stay tuned. Pics coming tonight!

[VintagePC]

Update: Pictures uploading as I post.

After 11 pages, 155 posts, and 2470 views... WE'RE DONE!

a BIG thank you to everyone who helped bring this to fruition.

Hopefully I'll find another tube set and be back for more

If you've got questions or comments about anything, drop 'em below... I'll field them as I can.

Thanks again!