Author Topic: Wurlitzer 200A microphonic  (Read 233 times)

Offline Cookymonster

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Wurlitzer 200A microphonic
« on: June 06, 2021, 04:17:59 PM »
Hello .  My first Wurlitzer plays quite nice.
It has a Vintage Vibe amp with FX loop.
Nothing seems wrong with the mechanisme.
The only thing that is annoying is the constant ringing of the harp.
The pickups seem to pick up the resonance of the harp and mechanism.
There is always an Eb coming through with every key played.
The same Eb you hear when tapping the harp.
So no issue with some key  damper.
Is it something "normal" we have to accept from the Wurly design.
Or is it a question of microphonics that shouldn't be there.

Thanks .
I will turn all my mountains into rhodes.

Offline pianotuner steveo

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Re: Wurlitzer 200A microphonic
« Reply #1 on: June 08, 2021, 03:43:30 PM »
No, it is not normal. Double and triple check every Eb damper. It is very likely one is not seating properly. Sometimes the felt gets crusty and squeezing the felt with needle nose pliers can help.

1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 270 Butterfly Grand
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
2017 Yamaha P255
2020 Kawai CA99
....and a few guitars...

Offline Cookymonster

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Re: Wurlitzer 200A microphonic
« Reply #2 on: June 12, 2021, 05:50:18 PM »
Thank you so much Steve.
I took your advise serious and checked each damper.
Turned out that some dampers actually were not making good contact.
Especially the low D(!) which was mostly responsible for the ringing (that sounded much more like an Eb in higher register... !).
Strange.  But it was obvious.  I also noticed a more articulate popping sound when tapping the red felts on top of the dampers that weren't making good contact.
So I squeezed the felts and stabbed them with a needle.
Result is a nice sounding Wurlitzer.
I was not  aware of the importance of the dampers that much. They looked OK to me because they seemed to do their thing on the key itself.
Looks like all these small damper felts contribute at dampening the whole harp and mechanism.
So, again Steve, thank you so much for this helpful advise.
Not only this advise, but also lots of others I found on this forum, in your posts.
I learned a lot from the "masters" like you, Ben, Tim, Peter, Sean, Chris, Alan, Jenz, Mike, Dave, ... 




« Last Edit: June 15, 2021, 06:01:13 PM by Cookymonster »
I will turn all my mountains into rhodes.

Offline pianotuner steveo

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Re: Wurlitzer 200A microphonic
« Reply #3 on: June 13, 2021, 10:57:10 AM »
Thanks! Glad you found the problem.
1960 Wurlitzer model 700 EP
1968 Gibson G101 Combo organ
1975 Rhodes Piano Bass
1979 Wurlitzer 206A EP
1980 Wurlitzer 270 Butterfly Grand
2004 Hammond XK3
2009 73A Rhodes Mark 7
2009 Korg SV-1 73
2017 Yamaha P255
2020 Kawai CA99
....and a few guitars...