Gretsch G5222-VCM Vintage Custom Modified - diyAudio
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Old 14th May 2015, 01:15 AM   #1
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Default Gretsch G5222-VCM Vintage Custom Modified

This is a project based on the small GRETSCH G5222 amplifier : a vintage-like rebuilt.

The original, bought 2nd hand for cheap :

Click the image to open in full size.

The cab is covered with real "synthetic tweed" fabric, not a printed covering, so I put a clear coat of satin polyurethane finish on it, giving more contrast and a little "ageing" effect.

Click the image to open in full size.

I replaced the original 6" speaker for a 8" AlNiCo Heppner from the mid-50s coming, I believe, from an organ.

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And cut a new baffle for it (W=227mm x H=237mm x Thk=10mm, plywood) that I covered with a "Oxblood plus Gold Stripes" grillcloth.

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Click the image to open in full size.

I removed the original circuit from the chassis, and prepared a handwired circuit, adding requested holes, parts and modifying disposition.

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Here is the circuit completed.

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Here are some pictures of the finished amplifier, with its custom-made GRETSCH plate logo.

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Some samples with a Gretsch G5420 and some reverb touch.

https://soundcloud.com/tubelectron/r...-soulrhythmmp3

https://soundcloud.com/tubelectron/r...22vcm-bluesmp3

https://soundcloud.com/tubelectron/r...-jazzrhythmmp3

https://soundcloud.com/tubelectron/r...m-rocknrollmp3

Specs :

4W RMS pure clean sound / 5W RMS overdrive.
Normal / Raw / Boost switch underneath.
12AX7 / 6V6GTA / 5Y3GT
input 1 = normal
input 2 = lowcut
Volume control pot, no other.
Old Valco pilot light.
The circuit basis is an improved mix between a 5E1 and a 5F1 Fender Champ Tweed 50's amplifier.

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Old 15th May 2015, 01:23 PM   #2
Trout is offline Trout  United States
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Love that Fabric!!
Very well done.
Where did you locate that?
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Old 25th May 2015, 08:09 AM   #3
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Love it! Sounds great, it has a cool vintage vibe going on! Am I correct in assuming you played a humbucker-equiped guitar through it? (Nice playing too by the way!)

Do you have a schematic of the circuit? I would really like to do something like this myself, those little amps turn up here every now and then for cheaps.
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Old 25th May 2015, 09:18 PM   #4
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Thank you, guys !

Quote:
Love that Fabric!!
Very well done.
Where did you locate that?
The grillcloth is called "Oxblood with Gold Stripes". You can find it at tubetown.de.

The covering tweed of the amp is the original one, with just a coat of satin polyurethane varnish brushed on it.

Quote:
Love it! Sounds great, it has a cool vintage vibe going on! Am I correct in assuming you played a humbucker-equiped guitar through it? (Nice playing too by the way!)

Do you have a schematic of the circuit? I would really like to do something like this myself, those little amps turn up here every now and then for cheaps.
Yes, the guitar is a GRETSCH G5420 :

Click the image to open in full size.

And here is the complete schematic of my GRETSCH G5222-VCM :

Click the image to open in full size.

This schematic can apply for a FENDER Champion 600 RI, since it shares exactly the same chassis as the G5222.

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Old 27th May 2015, 04:58 PM   #5
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Terrific,thanks!
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Old 27th May 2015, 05:01 PM   #6
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Terrific, thank you! I've repaired my tube amps and built parts of it (like bias boards, changing the circuit and installing new tube feet etc.) but never built a complete amp from scratch. This looks it could be my first :-)
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Old 28th May 2015, 12:04 AM   #7
Trout is offline Trout  United States
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Quote:
The grillcloth is called "Oxblood with Gold Stripes". You can find it at tubetown.de.

The covering tweed of the amp is the original one, with just a coat of satin polyurethane varnish brushed on it.
I have that grill cloth,, that is easy to get.

That tweed fabric however, impossible to locate. The normal Fender style stuff is easy to get.

The stuff on that amp is STUNNING!!!
I love that look.
If I ever find someplace that has it, I will be in heaven!

Thanks for posting this stuff!!
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Old 30th May 2015, 10:37 PM   #8
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Thank you guys,

Quote:
That tweed fabric however, impossible to locate.
Yes, I never found it too. Only the diagonal all-around Fender tweed that I dislike (but it's me) is available. The tweed is the original one that was put on the amp : it is like the original GRETSCH chequered tweed that can be found on vintage Electromatics from the 50's.

Quote:
but never built a complete amp from scratch. This looks it could be my first :-)
I think that you have here all the informations to go safely on such a little project, but if I can help for additional input, feel free to ask, no issue.

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