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Hoffman Amps Forum image Author Topic: teisco checkmate 50 amp - BULB QUESTION below  (Read 7077 times)

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Offline LooseChange

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teisco checkmate 50 amp - BULB QUESTION below
« on: August 16, 2011, 08:10:44 pm »
Just got this in. The coupling caps are leaky (as usual) and Filter caps need replacing too.
This amp is true point to point and it's got some weirdness.
Check out the schematic (best I could find) and look at the E-OSC device. When you flip a switch it plays a tone mixed in with the guitar. Don't know why you want that.

« Last Edit: August 18, 2011, 05:19:39 pm by LooseChange »
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Offline sluckey

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Re: teisco checkmate 50 amp
« Reply #1 on: August 16, 2011, 08:31:07 pm »
E-OSC... Plays an E note for tuning. Gretsch did that on several amps too. Handy back in the day.
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Offline LooseChange

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Re: teisco checkmate 50 amp
« Reply #2 on: August 16, 2011, 09:21:17 pm »
Jeez.. I'm so dumb.
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Offline TubeGeek

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Re: teisco checkmate 50 amp
« Reply #3 on: August 17, 2011, 12:40:32 am »
 :l2: :laugh:

« Last Edit: August 17, 2011, 12:44:02 am by TubeGeek »
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Offline Willabe

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Re: teisco checkmate 50 amp
« Reply #4 on: August 17, 2011, 01:22:07 am »
No, it's for playing eastern world music.

It's for a drone tone, key of E.          :m20


          Brad        :icon_biggrin:           
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Offline John

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Re: teisco checkmate 50 amp
« Reply #5 on: August 17, 2011, 06:13:51 am »
We've just all gotten spoilt with the $20 clip on tuners. I had someone not that long ago look at my old pitch pipe I used to use, and ask what it was.
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Tapping into the inner tube.

Offline Madison

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Re: teisco checkmate 50 amp
« Reply #6 on: August 17, 2011, 09:14:25 am »
That was my first question was "what key?".

Hey, at least they were aiming for rock and roll with the key of E!

Or else it would have been to the orchestral tuning key of A.Me thinks not.

Any way to hook a pot, or something, up to it on a wha pedal to get different keys?

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Offline LooseChange

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #7 on: August 18, 2011, 05:23:29 pm »
I can't figure out what type of bulb this is other than it's 6.3 volt because I can't take it out.
How does this bulb come out??


Madison, Buckethead is in town next week.
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Offline PRR

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #8 on: August 18, 2011, 05:31:38 pm »
Get rubber hose a little smaller inside than the bulb. Push in a bit, turn counter-clockwise 1/8 turn, it should jump out. Just like a 1940s-1980s car tail lamp bulb.
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Offline LooseChange

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #9 on: August 18, 2011, 05:53:17 pm »
So, it's a bayonet style? Like the #47 but half the size. It's blown so I need to replace it. Do you know what it's # is? Thanks!
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Offline LooseChange

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #10 on: August 18, 2011, 06:13:32 pm »
Great idea! I used a piece of heat shink tube. BUT... It was a screw out type!
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Offline Madison

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #11 on: August 19, 2011, 01:04:37 am »
>>It was a screw out type!

I have a few in the bin for these oldies.

>>Madison, Buckethead is in town next week.

Wish I could go!
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Offline PRR

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #12 on: August 20, 2011, 12:47:18 am »
> BUT... It was a screw out type!

Shove a drill through. Goo an LED inside the holder. Infinite life.

Sorry about the bum steer.
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Offline LooseChange

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Re: teisco checkmate 50 amp - BULB QUESTION below
« Reply #13 on: August 20, 2011, 06:47:11 am »
Rat Shack had them! Thanks!!!
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