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Messages - thelonious_crunk

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The Wurlitzer Electric Piano / Re: 120 model, not far off
« on: April 07, 2021, 05:48:47 PM »
That tape is gone with the death cap, it was just where they soldered a new lead from the fuse before.  I will add wire sleeves. Yes i have worked on a couple, and completely recapped a push/pull first try recently.  I had too many bad experiences bringing these to amp techs when i was younger 17 years ago.  I know how to use a multimeter to discharge them yes, but should I be building some alligator clipped lead wire with a resistor?  I use tools with rubber handles, work with one hand, and wear gloves.  I never touch the leads with my bare hands.

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The Wurlitzer Electric Piano / Re: 120 model, not far off
« on: April 07, 2021, 06:14:21 AM »
The guts, before i cut out the death cap on the right side.  It was connected to the fuse

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The Wurlitzer Electric Piano / Re: 120 model, not far off
« on: April 07, 2021, 06:12:48 AM »
If I remember correctly, yes, that white one is the "death cap" in this amp. Have you got a picture of this modded fuse holder?

I only figure its modified since there is an extra drill hole where I presume it used to be

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The Wurlitzer Electric Piano / Re: 120 model, not far off
« on: April 06, 2021, 04:45:24 AM »
Judging from the cheek block, it looks like yours might have the 700 amp in it. The giveaway is that your pilot light is a jewel with an incandescent bulb behind it. The 120 amp has a neon pilot light. They're the same amp, but there is a significant difference in the wiring to the cheek block. Does your speaker plug into a socket on the amp, or is it wired up to the cheek block?

https://www.tropicalfishvintage.com/s/wurlitzer-700-schematics-diagrams.pdf

It has wiring to the cheek block no plug on the amp.  Can't tell if the year says 1958 or 1959.  I noticed the fuse holder is wired on the outside of the chassis which looks like it was done afterwards in the 70s or so.  Maybe the death cap blew a bunch of them for them to move it?  So is the .1uf 600v white cap that was wired to the fuse a still gonna be the death cap in a 700 amp?

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The Wurlitzer Electric Piano / Re: 120 model, not far off
« on: April 04, 2021, 07:04:41 PM »
No worries, i am taking my time on this one.  I appreciate you sending that.  And yes, i snipped that death cap right out of there.  What's funny is someone mounted fuse holder to the outside of chassis so they could easily change them.  Its the only mod i see non original in there.  I ordered a Tropical Fish electronics replacement kit as well.  Another oddity, i noticed that instead of 2 matched 6v6gt tubes, it sported one 6v6gt and a 6L6gc!  Obviously not good for the amp at all. 

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The Wurlitzer Electric Piano / Re: 120 model, not far off
« on: April 02, 2021, 08:35:12 AM »
Thanks pianotuner steveo.  Are you the seller of the let off tool on eBay?  Just picked one up, and i have been absorbing the service manual and schematic.  Is the hand drawn part on the schematic a revision for a Line Out? I noticed none of my outputs liked my 30s PA amp

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The Wurlitzer Electric Piano / 120 model, not far off
« on: April 01, 2021, 01:04:06 AM »
Hi all,

Finally, after getting rid of a 112 model 16 years ago (stupidly), I have purchased another Wurly.  A 120 model!  I am absorbing all the old posts here best i can.  Few questions:

1.  Death cap, which one is it?  And do you just snip it out, or do you have to bridge a connection from where its cut?  This amp is fairly quiet and i fear changing the tone by recapping it.  Maybe just the power supply caps are worth replacing? 

2.  Damper rail - can i just take it all off at once?  If so, how?  I need to get to the reeds to clean any corrosion on a couple notes that don't naturally sustain long enough.  I feel like in my old 112 it was easier to access.

3.  Seems like when i blast the volume past 90%, the speaker lightly overloads and not in the good way only while played.  However, i feel the new speaker replacement could help.

As far as the action, its pretty darn enjoyable as is.  It was lightly used by a lady in a country western band in the 60s/70s!

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