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Dating a 200B head [message #5709] Tue, 19 April 2005 15:22 Go to next message
torsson is currently offline  torsson
Messages: 2
Registered: April 2005
Junior Member
Just bought an old kustom head (200B) and i need some help dating it. The serial number is 56779 on backplate. Is it a '69 or '70?

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Re: Dating a 200B head [message #5715 is a reply to message #5709] Thu, 21 April 2005 16:22 Go to previous messageGo to next message
LesS is currently offline  LesS
Messages: 478
Registered: December 2002
Senior Member
Hi torsson,
If you send me the numbers written on the upper front frame of your amp, I will try to figure out from that what your actual production date is. To see these numbers, you have to remove the amp chassis from the cabinet.

The characters will be something like this: 8.5 8.4 4.1 Go/07G
-Les S
LStrick115@aol.com

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Re: Dating a 200B head [message #5717 is a reply to message #5715] Sat, 23 April 2005 13:32 Go to previous messageGo to next message
torsson is currently offline  torsson
Messages: 2
Registered: April 2005
Junior Member
The characters on my amp are: 8.1 8.1 8.1 Fo/25D

/Torsson


LesS wrote on Thu, 21 April 2005 16:22

Hi torsson,
If you send me the numbers written on the upper front frame of your amp, I will try to figure out from that what your actual production date is. To see these numbers, you have to remove the amp chassis from the cabinet.

The characters will be something like this: 8.5 8.4 4.1 Go/07G
-Les S
LStrick115@aol.com

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Re: Dating a 200B head [message #25433 is a reply to message #5717] Thu, 18 August 2016 04:48 Go to previous messageGo to next message
Torsson-2 is currently offline  Torsson-2
Messages: 6
Registered: August 2016
Junior Member
Found my old post from 2005 about dating a 200 bass head.
Saw it was still no answers Wink

Anybody who knows the manufacturing date? The code inside is: 8.1 8.1 8.1 Fo/25D

Also, what are the specs on the output on those, 4 or 8 Ohm?
If it's 4 Ohm, can I go with a 8 Ohm cabinet without ruining the power tranny?

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Re: Dating a 200B head [message #25434 is a reply to message #5709] Thu, 18 August 2016 06:23 Go to previous messageGo to next message
stevem is currently offline  stevem
Messages: 4774
Registered: June 2004
Location: NY
Senior Member
On the black metal bell case on your amps power transformer there will be a series / string of 6 numbers stamped in it, if you post those numbers I can tell you when your amp came out of the Woumb!

On every control pot in the amp you will find a series / string of 6 numbers that start with 137, for example 137934, the last three digets in that string are number 9 the year 1969 and the last two are the week of that year.


All Kustom 200 series amps need a 4 ohm load to output there full 100 watts of clean power, running them on a 8 ohm load is less of a load on the amps power supply , but you will only have / hear some 65 watts of clean output.

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Re: Dating a 200B head [message #25435 is a reply to message #25434] Thu, 18 August 2016 07:38 Go to previous messageGo to next message
Torsson-2 is currently offline  Torsson-2
Messages: 6
Registered: August 2016
Junior Member
stevem wrote on Thu, 18 August 2016 06:23
On the black metal bell case on your amps power transformer there will be a series / string of 6 numbers stamped in it, if you post those numbers I can tell you when your amp came out of the Woumb!

On every control pot in the amp you will find a series / string of 6 numbers that start with 137, for example 137934, the last three digets in that string are number 9 the year 1969 and the last two are the week of that year.


All Kustom 200 series amps need a 4 ohm load to output there full 100 watts of clean power, running them on a 8 ohm load is less of a load on the amps power supply , but you will only have / hear some 65 watts of clean output.



Checked the transformer now. I guess it's a Northlake (EIA # 1005) the number is 1005021, so I guess it's a 1970, week 21. There's also anotther code on it: 019-7005-01. Could that be the part number?
On the pots it says: 137 7006.

[Updated on: Thu, 18 August 2016 09:08]

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Re: Dating a 200B head [message #25437 is a reply to message #5709] Thu, 18 August 2016 11:23 Go to previous message
stevem is currently offline  stevem
Messages: 4774
Registered: June 2004
Location: NY
Senior Member
Yup so your amp is a 1970.

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