| Was there an early K100 and a later K100 ? (like K200A/K200B) [message #8222] |
Sat, 10 February 2007 11:41  |
LesS
Messages: 477
Registered: December 2002
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Senior Member |
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This is in response to a post by wsbb.... "My K100-1 has a serial# 24405/thin power cord,large round nut on the switch. It must be one of the earliest K100's? "
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[color=blue]Was there an early K100 and a later K100?? (like K200A/K200B).......VintageKustomFAQ5
There was a big distinction between the K200A and the K200B (see below).
With K100s, I do not know if these same differences exist.
Your K100-1 SN 24405 was made approx Wednesday June 12, 1968 so I would consider it to be one of the first of the later K100s IF there was an early K100.
Maybe others can shed some light on differences between an early K100 and a later K100, if any.
The first K100 that I am aware of is SN 18943 (Nov 1967) that was a PA model which had the larger chassis of the K200.
The first K100 non-PA that I am aware of is SN 21520 the SN tag was on the upper left, it also had the color stamped on the tag, the info tag said 50 watts (later ones said 60 watts), the pilot light was red not sure if it was original but later original pilot lights were blue/purple.[/size]
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Difference between 200A and 200B
The Kustom K200A series was produced approx. May 1967 to May 1968.
The Kustom K200B series was produced from about June 1968 to about May 1971.
There were several differences between the A and the B (see list below) but one important difference is that the B had protection for the power transistors, the A did not. In other words, if you unplugged or shorted the speaker outputs on a B model, you probably would not damage the amp.
Difference between 200A and 200B
a).. The A series are about an inch shorter in depth than the B.
b).. The A series has 5 mounting bolts to the casing (B has four).
c).. The power transistors are not protected on the A series.
d).. The A series had the XLR jack for the footswitch.
e).. The B series had added corner supports in the chassis.
f).. The A series had smooth instead of faceted pilot lights.
g).. The A series (and some very early Bs) had thick round nuts on the power switches.
h).. On front of head below input jacks, A says by Ross; B says nothing there.
i).. On front of head below Kustom, A says nothing; B says 200
j).. A (and some very early Bs) had red pilot lights, B had purple???
k).. A (and some early Bs) had thinner power cords than later models (??)
l).. A has two fuses; the B has one fuse
m).. cord hangers on back of amp- A round, chrome (ended at some point before 20500). B black (A after about 20500 also had black)
n).. A had speaker overload and power overload lights on the front panel along beside the power switch (ended at some point before 20500; basically the early (1967) heads had these 2 overload lights and the later (1968) models did not.)
[Updated on: Sun, 09 September 2007 14:21] Report message to a moderator |
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| Re: Was there an early K100 and a later K100 ? (like K200A/K200B) [message #8223 is a reply to message #8222] |
Sat, 10 February 2007 12:40  |
rodak
Messages: 514
Registered: October 2001
Location: Georgia
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Senior Member |
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Fascinating stuff, Les! Sure would be nice if all this (and other details about the various models) were up on a website for handy reference. (Not intended as a criticism of Dan, either - my own website needs a lot of updating, and I just don't have the time).
Speaker overload and Power overload lights on the front panel? I'm not a real serious Kustom observer, but I don't think I've ever seen ANY Kustom amp with more than one light (the pilot light) on the front. Can you provide or point us to a picture of one like that?
www.combo-organ.com
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| Re: Was there an early K100 and a later K100 ? (like K200A/K200B) [message #8235 is a reply to message #8222] |
Sun, 11 February 2007 21:14 |
wsbb
Messages: 6
Registered: January 2007
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Junior Member |
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My K100-1(24405)Has no watt designation on the serial# tag or color designation. There is no seperate info tag and there's no evidense of any other tag ever being there. The light is red, and I believe original. I think this is one of the first series K100 non PA amps. Reasons: thin cord, large round on-off switch ring, (switch not shiny), red light, no tag with color, watt info. Second series: thicker cord, chrome switch w/squared corner nut, purple light, info tag on upper right back corner. These are cosmetic differences. I don't know if ther are any electronics differences. Another question would be did the K100-1's (no effects, bright and normal channels, high and low inputs) come before the K100-2's (verb and trem, single bright channel,high and low inputs)
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