Teeco 610D conversion

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angelodp
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Teeco 610D conversion

Post by angelodp »

Hi, I have a Teeco 610D amp, 2 6v6, looking to convert to a guitar amp. It works, all tubes are running and voltages are ballpark. Anyone done one of these and can offer a bit of help on the conversion. There are 4 inputs, mag/phone probably the right choice to put the jack on. Any help appreciated.

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Stevem
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Re: Teeco 610D conversion

Post by Stevem »

If it has 2 inputs for phonograph one input will have a much hotter gain level.
If you can take a few good clear up close pictures of all the circuit off of those to rca jacks all the way back to the first tube which should be the first gain stage and post them up here, or better yet draw out a schematic and post it here!

What does this amp use for small tubes other then the 2 output tubes?
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

Hi, here are some pics of the amp. I am hoping to be able to do as simple a conversion as possible. Basically add the jack and remove any unwanted components.
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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

More pics
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Re: Teeco 610D conversion

Post by angelodp »

More pics
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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

If anyone has a schematic for the amp TEECO 610D?

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Stevem
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Re: Teeco 610D conversion

Post by Stevem »

Well get or make a cable adapter and plug your guitar in the Mag input and see if it has a normal amount of gain, it does look like it should get a power supply recap session done to it though!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

Hi Steve, ok she works. Needed a new 6SC7 tube. Cleaned all tube sockets...bam, it came on. Poked around with alligator clips until it played. The volume is a bit low and its kinda bassy with tone knobs on ten. I'll keep at it.

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Stevem
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Re: Teeco 610D conversion

Post by Stevem »

It's bassy because the tone control section is set up for Hi Fi use.
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

Can you recommend changes that would help? Alos looking to increase overall volume.

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Stevem
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Re: Teeco 610D conversion

Post by Stevem »

Is the Tele your main axe and what amps have you played tru that kinda work for you sound and feel wise?

I am also assuming that you can not get this amp to distort much right now?
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

Hi Stevem, I have made some good progress with this amp. It will distort wide open. I removed some components that were not working in the guitar circuit, added a three prong IEC, added a fuse, added a proper on off switch, added an output jack for 16 ohm, changed out one of the electrolytic caps. Its actually sounding pretty good. I will post my progress and ask more questions.

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angelodp
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Re: Teeco 610D conversion

Post by angelodp »

Made these changes to the amp. Just the usual safety measures, three prong, on/off, fuse, jacks. The question is now..... should i just strip this out and re-wire as a 5A3? The PT puts out 325v and the tube compliment is right on the mark for a 5A3. I could create a board and mount it. Any input appreciated.

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Stevem
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Re: Teeco 610D conversion

Post by Stevem »

Yes strip it out, but on the preamp tube sockets leave on wires on them for now and cut them off at the terminal strip end.
In this way you may beable to reuse them during the rebuild and not have to burn up a good tube socket by trying to remove
them.

I would also do away with the can filter and make a separate board for all the power supply filters, in this way you will be able to get the amps grounding layout better for less 120 HZ hum/ noise.

Another thing to keep in mind when doing a amp layout and figuring out where to put thing's is that wiring wise for the least noise and the lowest chance of have a oscillating condition and poor tone taking place is to make the Plate wires long if you need to get from the tube to the board and this will allow you to make the grid wires as short as possible since they act like antennas and transmitters, neither of which is good in any amp !
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When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
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Phil_S
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Re: Teeco 610D conversion

Post by Phil_S »

+1 on stripping it. This chassis is a good candidate for a pair of parallel terminal strips. It looks too narrow for a board. See if you can find some that have more than 4 lugs.

All sorts of goodies here:
https://www.amplifiedparts.com/search/n ... al%20strip
I like this for the build if it fits:
https://www.amplifiedparts.com/products ... urrets-row
Disclaimer, I have no experience with this particular vendor. They just happen to have a page with a decent selection of stuff we amp builders use.
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