DeArmond - Twister ( Model 1930 Phaser )

Discussion regarding early stompbox technology: 1960-1975 Please keep discussion focused and contribute what info you have...

Re: Help! Vintage Dearmond Twister thumping

Postby analogguru » 26 Oct 2010, 00:47

How´s about some guts ?

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Re: Help! Vintage Dearmond Twister thumping

Postby fernieite » 26 Oct 2010, 00:49

BTW, the guy said that it never did this for him. Is it possible that something went wrong during shipping? - or does it sound like BS? Thanks again.
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Re: Help! Vintage Dearmond Twister thumping

Postby fernieite » 26 Oct 2010, 00:59

analogguru wrote:How´s about some guts ?

analogguru


Here you go. Hope these help. Do you want some more?
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Re: Help! Vintage Dearmond Twister thumping

Postby Hides-His-Eyes » 26 Oct 2010, 10:13

If your setup is noisier than his before the pedal (unshielded guitar with single coils?) any trem might 'thump'.
Testing, testing, won too fwee
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Re: Help! Vintage Dearmond Twister thumping

Postby lolbou » 26 Oct 2010, 10:26

fernieite wrote:Hope these help. Do you want some more?

Could you try some in macro mode, and, maybe trackside? Thanks. :wink:
- Are you a mod or a rocker?
- Uh, no, I'm a mocker.
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Re: Help! Vintage Dearmond Twister thumping

Postby DrNomis » 26 Oct 2010, 10:28

A schematic would also be helpful too.... :)
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Re: Help! Vintage Dearmond Twister thumping

Postby Dirk_Hendrik » 26 Oct 2010, 11:03

DrNomis wrote:A schematic would also be helpful too.... :)

`

Sharp photo's of both component and trackside are the first step toward a schematic....
Sorry. Plain out of planes.

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Re: Help! Vintage Dearmond Twister thumping

Postby DrNomis » 26 Oct 2010, 11:10

But a schematic should be findable on the internet,shouldn't it?.... :)
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Re: Help! Vintage Dearmond Twister thumping

Postby analogguru » 26 Oct 2010, 11:15

DrNomis wrote:But a schematic should be findable on the internet,shouldn't it?.... :)

Not yet....
Some parts are still unsolved, but I can tell you so far that it is a 4-stage switched capacitor phaser.

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Re: Help! Vintage Dearmond Twister thumping

Postby fernieite » 26 Oct 2010, 14:01

Hides-His-Eyes wrote:If your setup is noisier than his before the pedal (unshielded guitar with single coils?) any trem might 'thump'.


I was using my LesPaul with humbuckers with Evidence Audio and George L's through my 63 Pro. Maybe I'll try another amp or guitar. The thing doesn't seem to thump when the rate is 75% - 100%. But, 0-75 thumps with the rate that the pot is set at.
BTW, I didn't realize the Twister was still un-schematiced. I'm happy to share pics and info for any of my vintage effects. Maybe I should post them in the circuit analysis section though. This post was for help fixing my Twister. Thanks.
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Re: Help! Vintage Dearmond Twister thumping

Postby analogguru » 26 Oct 2010, 19:25

fernieite wrote:BTW, I didn't realize the Twister was still un-schematiced. I'm happy to share pics and info for any of my vintage effects. Maybe I should post them in the circuit analysis section though. This post was for help fixing my Twister. Thanks.

topics merged..., here you go.

BTW, I think your unit has been on evilbay too, on 22.09.2010.

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Re: Help! Vintage Dearmond Twister thumping

Postby borislavgajic » 26 Oct 2010, 21:17

Dirk_Hendrik wrote:
DrNomis wrote:A schematic would also be helpful too.... :)

`

Sharp photo's of both component and trackside are the first step toward a schematic....



:horsey: come on......
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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby borislavgajic » 28 Oct 2010, 22:20

I am starting to draw PCB for this, and will post it here , but missing all capacitor values........also there are 3 empty places for resistors on yellow PCB..........

any help is welcome...

:idea:

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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby Dirk_Hendrik » 29 Oct 2010, 17:23

borislavgajic wrote:for resistors on yellow PCB..........

any help is welcome...


Try again with blue. Blue always does the trick for me! :secret:


















































































































:mrgreen:
Sorry. Plain out of planes.

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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby borislavgajic » 30 Oct 2010, 17:24

:?: thanks for advice....but I did not understand..... :oops: :scratch: :blackeye

:D
soon this phaser is going to have cloned brother....

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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby borislavgajic » 30 Oct 2010, 18:43

this is yellow in blue manner.........just for fun :blackeye

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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby fernieite » 30 Oct 2010, 18:58

More pics. I wrote down the cap values and trannys, as well, if anyone wants. Only 1 cap (an electrlytic?) wasn't readible. The numbers are hidden underneath.
Does this make you vultures (Boris) happy now? :wink:
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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby borislavgajic » 30 Oct 2010, 19:26

I am more than happy!!!

thanks...but please can you post cap values too , and what is written on those 3 transistors?

soon I'll correct my layout and make it to look like your original :thumbsup

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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby fernieite » 30 Oct 2010, 19:55

Values: View left to right with wire connection side of board on top (all caps 100v, except when noted)

Top row: C1 green 102K - C2 green 472K - grey electrolytic? (values hidden underneath, although 35V is visible) - C3 green 222K - C4 green 104K - C13 green 472K
Next row: C15 Red .047K - C5 green 102 K - C8 green 102K - green 474K
Next row: far left C6 green 102K - C7 102K
Bottom row: Grey electrolytic? 2.2 uf 35vdc - green 103 K - 3 orange ceramic? 47K 1kv - yellow .2uf 200v - C12 green 104K - C14 green 474K - green 102K
Trannys: T1 PN 4303 - T2 NP 4250 ebc - T3 NP 4250 ebc

I triple checked for accuracy, btw.
Last edited by fernieite on 30 Oct 2010, 20:24, edited 1 time in total.
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Re: DeArmond - Twister ( Model 1930 Phaser )

Postby borislavgajic » 30 Oct 2010, 19:58

Please could you post values of marked components..... :thumbsup

Thanks

B.
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