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Hoffman Amps Forum image Author Topic: Blank JTM 45 Chassis source?  (Read 3070 times)

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Offline dragonbat13

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Blank JTM 45 Chassis source?
« on: October 13, 2021, 09:51:08 am »
I need a blank JTM 45 aluminum chassis.  It needs to fit in a mojotone head shell.  Also needs to be able to support BIG iron.  I'm thinking of building one out of a Heathkit W-M5 (I have five of them, two are good for nothing but parts, the other three are being left as hi Fi amps so don't worry😉).  But the iron is heavy, I'm sure it's heavier than standard jtm iron. 

Thanks.

Offline acheld

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Re: Blank JTM 45 Chassis source?
« Reply #1 on: October 13, 2021, 10:02:08 am »
Terry does beautiful work, very accurate.  Surprisingly inexpensive, IMO.

https://seasidechassisdesign.com

Offline dragonbat13

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Re: Blank JTM 45 Chassis source?
« Reply #2 on: October 13, 2021, 10:18:49 am »
That's who I was looking for. Thank you.

Offline 66Strat

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Re: Blank JTM 45 Chassis source?
« Reply #3 on: October 13, 2021, 10:21:41 am »
Regards,
JT

Offline Bieworm

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Re: Blank JTM 45 Chassis source?
« Reply #4 on: October 13, 2021, 11:33:20 am »
I envy you USA guys for your easy access to the most parts of amps, but 2 things are way cheaper here in Europe:
- Used Celestion speakers
- chassis blanks: https://www.tube-town.net/ttstore/tt-chassis-alu-typ-001-standard-430-x-170-x-65.html

And that's with the raised prices. Last year I bought them for 15€!!!
"This should be played at high volume.. preferably in a residential area"

Offline pdf64

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Re: Blank JTM 45 Chassis source?
« Reply #5 on: October 13, 2021, 01:24:31 pm »
I envy you USA guys for your easy access to the most parts of amps, but 2 things are way cheaper here in Europe:
- Used Celestion speakers
- chassis blanks: https://www.tube-town.net/ttstore/tt-chassis-alu-typ-001-standard-430-x-170-x-65.html

And that's with the raised prices. Last year I bought them for 15€!!!
US made chassis often seem higher quality though, eg higher grade metal, welded corners.
Are the corners of those TT chassis braced somehow, welded, rivited?
I really like the chassis from Modulus, but it’s a PIA having to fit angle strip to brace the corners.
« Last Edit: October 13, 2021, 01:26:36 pm by pdf64 »
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Offline mresistor

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Re: Blank JTM 45 Chassis source?
« Reply #6 on: October 13, 2021, 03:35:28 pm »
oops  disregard that one was steel

« Last Edit: October 13, 2021, 03:49:00 pm by mresistor »

Offline dwinstonwood

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Re: Blank JTM 45 Chassis source?
« Reply #7 on: October 13, 2021, 03:45:00 pm »
https://www.ebay.com/itm/224398633901?hash=item343f336bad:g:1PAAAOSwQEpdYXR~

That's exactly where I bought my blank JTM chassis! Great quality, very rigid, and free shipping!

Offline mresistor

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Re: Blank JTM 45 Chassis source?
« Reply #8 on: October 13, 2021, 05:25:41 pm »

Offline Bieworm

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Re: Blank JTM 45 Chassis source?
« Reply #9 on: October 14, 2021, 05:28:52 am »
I envy you USA guys for your easy access to the most parts of amps, but 2 things are way cheaper here in Europe:
- Used Celestion speakers
- chassis blanks: https://www.tube-town.net/ttstore/tt-chassis-alu-typ-001-standard-430-x-170-x-65.html

And that's with the raised prices. Last year I bought them for 15€!!!
US made chassis often seem higher quality though, eg higher grade metal, welded corners.
Are the corners of those TT chassis braced somehow, welded, rivited?
I really like the chassis from Modulus, but it’s a PIA having to fit angle strip to brace the corners.

Ouch! 😉 that's discriminating 😀😀
You're right though about them not being welded at the corners. I don't mind ...
BUT.. lower quality material than US products? I think we can all agree that German made stuff is at least as good.  The highest European standards are expressed in DIN (Deutsche Industrie Norm).. think Audi, BMW,  Mercedes Benz...
"This should be played at high volume.. preferably in a residential area"

Offline EL34

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Re: Blank JTM 45 Chassis source?
« Reply #10 on: October 14, 2021, 07:02:33 am »
I need a blank JTM 45 aluminum chassis.  It needs to fit in a mojotone head shell.  Also needs to be able to support BIG iron.  I'm thinking of building one out of a Heathkit W-M5 (I have five of them, two are good for nothing but parts, the other three are being left as hi Fi amps so don't worry😉).  But the iron is heavy, I'm sure it's heavier than standard jtm iron. 

Thanks.

Look at the blank chassis here to see if it is the right size
https://hoffmanamps.com/MyStore/catalog/Chassis.htm


Offline Tone Junkie

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Re: Blank JTM 45 Chassis source?
« Reply #12 on: October 16, 2021, 12:26:51 am »
Plus you can’t beat the fastest shipping in the business. Bill

 


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