Author Topic: Why do we think 200As started in 1972? Why not 1974?  (Read 2159 times)

Offline DocWurly

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Why do we think 200As started in 1972? Why not 1974?
« on: July 06, 2014, 08:32:38 AM »
Why do we think the 200As were first produced in 1972?  Are we sure they aren't initially from 1974? or very late in 1973?

The easy answer would be a production date stamped on the instruments themselves.  Preferably on the amp section, as that what makes it an "A".

It suddenly occurs to me that I see no schematics (or notes) related to the 200A line that are dated prior to October 15, 1974 (and the only one with a date is a schematic for a 207A/207VA, page 70 in my manual).

There are schematics for the non-"A" series as late as June 1, 1973--actually, there are 6, including a 200/203/214 printed circuitboard, p. 45 in my manual. 

Of course, it is possible that they were still updating schematics for the pre-A 200 series long after the 200A series were well into production. (Much as there is a revised 140B amp schematic from March 1, 1974!!)

I'd just love some sort of confirmation here.  Is it possible that we all just keep recycling some half-remembered, vague dates, over and over?  My own 200A has no obvious date on it.  My own experience is limited compared to that of some of you, and I wasn't paying attention to such evidence before, anyway.

A 1972 date on a vibrato pot or capacitor is not sufficient evidence.  ;)


Offline pianotuner steveo

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #1 on: July 06, 2014, 06:33:06 PM »
Not all but a lot of Wurli's had a date stamped under or on the keys with one of those rubber stamps that you change the date on. This was the final assembly date.

1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline DocWurly

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #2 on: July 07, 2014, 08:31:16 AM »
Right.  so, what is the earliest date anyone has found on a 200A, or any other 200A series keyboard?

Offline Max Brink

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #3 on: July 07, 2014, 11:13:04 PM »
I believe we were just emailing between one another on this topic...

The latest date that I have for a 200 would be June of 1972 (stamped on the key bed) and the earliest 200A (with the supports for 200 style alnico speakers) was dated some time in 1974 which was also from a stamp in the key bed. Those are the two benchmarks that I can narrow down.
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Offline DocWurly

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #4 on: July 08, 2014, 12:24:31 PM »
That is very helpful, and supports my current theory!

Offline pianotuner steveo

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #5 on: July 11, 2014, 07:55:33 AM »
So does that mean in 1973 they just sold out the rest of the 200's?

1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 200A EP
1980 Wurlitzer 270 Butterfly Grand
2000 Yamaha acoustic piano
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
....and a few guitars...

Offline jdseptor

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #6 on: September 17, 2014, 02:59:27 PM »
FWIW, I recently picked up a 200 with March 13, 1974 stamped on the amp board.

Offline DocWurly

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Re: Why do we think 200As started in 1972? Why not 1974?
« Reply #7 on: July 09, 2015, 10:15:50 AM »
FWIW, I recently picked up a 200 with March 13, 1974 stamped on the amp board.

This is fantastic data. Thank you. What is its serial number?