Build Your Own Clone Message Board

This is the same '79 Champ I started a NAD thread on last week. I played it just about wide open at the shop I bought it from and at around 1 or 2 at the condo while on vacation (to keep the peace mainly). There was no weird noise at any of those times.

I got back home today from vacation and immediately went to jam on my new toy. The 6v6 power tube had somehow fallen from the socket in transit; I'd noticed that the tube sockets were a little loose before. It looked fine, so I put it back in and played the amp. Now I am getting what sounds like a secondary fuzz tone that is about 1/8th or so the volume of the main amp signal (no pedals, straight into amp); that is, it sounds like a separate signal that is generating definite harmonic content like a fuzz would. Other than this, the amp sounds like I imagine it should (no other glaring problems).

Has anyone had experience with this and knows what it might be? Could the power tube be causing this somehow due to damage? I'm not sure if it matters, but the tube is a Raytheon 6v6, labeled: 280 548.

I can get in there and take some pics if needed.

I have repaired three SF Champs of late that ALL had this issue.

In all three cases, it was the speaker.

One good jolt and those old 8" give it up especially if they have been dormant awhile.

Ah, I see. I had anticipated playing this amp all week, so I may have gotten overzealous too quickly on the volume knob; guilty.

Is there any speaker you'd recommend for these amps? I've been reading up and am thinking of ordering a Jensen Mod8-20.

Buy an extension cab. The amp will sound much bigger.

As for a replacement a lot of people seem to use the Weber Signature 8. Havn't tried it though.

Here is the one I used in all three rehabs :



http://www.mojotone.com/amp-parts/speakers-8-inch/Weber-8-Champ-Speaker-1-Voice-Coil-15W

It is reasonably priced and sounds great.

Thanks, scootercaster! I just ordered the Weber you linked to.



I would love to, but don't have the funds free to do that with at the moment. I've been reading a lot of discussions about replacement speakers, though they might as well have been talking about pickups; there were so many brands and models being mentioned. If the Weber scooter linked is good enough for him, I imagine I'll be happy with it. Speakers are one piece of gear I haven't tried a lot of or swapped often.

Well, I ordered a Jensen MOD as well just so I could compare the two and keep whichever suits me best.