Finished my HiFi Amp Project

[bluesbubba]

A while back i purchased a Teeco HiFi tube amp at the swapmeet for five bucks. It has two EL84s, two 12AX7s and a 5Y3 rectifier tube . I decided to get inspired and create a guitar amp from scratch for the most part.

I rerouted the mic jack to the front of the amp and combined the selector switch as well. I wanted it to make it look like a real guitar amp so I added a toggle switch and a radio shack pilot light.

I made the faceplate with a piece of anodized aluminum I got at the hardware store. I built the speaker and amp cabinet from plywood and tolexed them.
Every step of the way I was fabricating something. I found a 1950s Bolex 12" ceramic speaker for the speaker cab.

Well here it is:

[tubeswell]

Wow that's cool - is it cathode- or fixed- biased?

You say its a ceramic speaker but it looks like alot of old alnico magnets used to look (I bet it sounds cool whatever)

[bluesbubba]

It's definitely fixed; no biasing. I thought it was a ceramic speaker by the big "bell" type cap. It came out of a Bolex external speaker cabinet made for projectors back in the 50s, 60s.

[bluesbubba]

A Teeco HiFi Tube Amplifier. Not bad fr 5 Bucks!

[tubeswell]

Originally Posted by bluesbubba

It's definitely fixed; no biasing. I thought it was a ceramic speaker by the big "bell" type cap. It came out of a Bolex external speaker cabinet made for projectors back in the 50s, 60s.

I think it looks like an old Goodmans speaker - could be a Goodmans in a Bolex cabinet.

[bluesbubba]

Originally Posted by tubeswell

I think it looks like an old Goodmans speaker - could be a Goodmans in a Bolex cabinet.

Is Goodmans considered a good speaker

[CitizenCain]

I don't know haw that speaker ranks, but it does look like an alnico mag to me. If it has a big bell cap on it, it's an alnico. Ceramics tend to be in the form of a big ring.

That's a sweet little project you go t there! That Teesco looks a lot like the Heathkit I'm perfomring a similar conversion on.

[tubeswell]

Yeah the Goodmans sure are good, they were originally installed in Vox's I believe, but Vox later changed to celestion blues (which were 'smaller' or lighter? for some reason). I put an old Goodmans in a 5F2A I built - it really sings.

[bluesbubba]

I found two speakers at the swapmeet; one was the Bolex with the cabinet and the other was a Bell & Howell with the cabinets; both are for projectors. I think they were both made in the late 50's by their style of the cabs. Got them for $10 each.

That B&H speaker is a Heppner which I found is suppose to be good for DIY cabs, However I like the sound of this Goodman.

I'm off to the swap meet this morning for more finds. Wish me luck The bug has bit me big time when it comes to building guitar amps and collecting amps.