D*A*M - 1966 Italian Tone Bender
- beedotman
- Diode Debunker
Information
Yo!
Layout for latest revision of D*A*M 1966 (sadly discontinued)- vox tone bender replica.
Instead of switching output capacitors as in old version - in new, super bee switch changes resistance of output pot from 470K (super bee mode) to ~42K (1966 mode) - really fun mod! Another change due to old layout - now bias trimpot is on Q1 collector.
Instead mounting two output parallel capacitors (C3 - Iskra's 4700pF and C6 - Xicon 2200pF) - You can remove C6 and change C3 to higher value to (6800pf will be the closest value, but 8200pf/10nf/15nf sounds cool, too).
Enjoy!
Layout for latest revision of D*A*M 1966 (sadly discontinued)- vox tone bender replica.
Instead of switching output capacitors as in old version - in new, super bee switch changes resistance of output pot from 470K (super bee mode) to ~42K (1966 mode) - really fun mod! Another change due to old layout - now bias trimpot is on Q1 collector.
Instead mounting two output parallel capacitors (C3 - Iskra's 4700pF and C6 - Xicon 2200pF) - You can remove C6 and change C3 to higher value to (6800pf will be the closest value, but 8200pf/10nf/15nf sounds cool, too).
Enjoy!
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- beedotman
- Diode Debunker
Information
and here's pic of hidden cap under board
- Attachments
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- hidden_cap.jpg (28.53 KiB) Viewed 5404 times
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- RnFR
- Old Solderhand
Information
I know there are standoffs and all, but man, I would've definitely put some insulation on the leads of that cap on the bottom of the board.
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- beedotman
- Diode Debunker
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true!RnFR wrote:I know there are standoffs and all, but man, I would've definitely put some insulation on the leads of that cap on the bottom of the board.
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- beedotman
- Diode Debunker
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And some more guts with different trannies combo - Texas Instruments OC82D + Mullard OC76 and Mullars OC71 + OC83.
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- beedotman
- Diode Debunker
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Redrawn layout with full wiring under turretboard.org label
- Attachments
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- 1966.pdf
- (20.23 KiB) Downloaded 281 times
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- sinner
- Old Solderhand
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- beedotman
- Diode Debunker
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- Solidhex
- Resistor Ronker
Those are half inch standoffs. If you're worried about those legs shorting to the enclosure its not really a possibility.RnFR wrote:I know there are standoffs and all, but man, I would've definitely put some insulation on the leads of that cap on the bottom of the board.
- G5120fx
- Breadboard Brother
I´ve build it yesterday, and its a nice sounding fuzz! I used Ac122´s (as always, I bought 100 pieces once).
It´s supposed to have not much sustain right? Italian Tone Bender --> Spaghetti Western --> little sustain right?
It´s supposed to have not much sustain right? Italian Tone Bender --> Spaghetti Western --> little sustain right?
- beedotman
- Diode Debunker
Information
How short is sustain? It shouldn;t have sustain similar to let say Buzzaround or MKII, but it shouldn't be very short though...G5120fx wrote:I´ve build it yesterday, and its a nice sounding fuzz! I used Ac122´s (as always, I bought 100 pieces once).
It´s supposed to have not much sustain right? Italian Tone Bender --> Spaghetti Western --> little sustain right?
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- beedotman
- Diode Debunker
Information
It' dependts... usually Q1 around 60-75 and Q2 70-110.G5120fx wrote:ok, there must be something wring then. The sustain is shorter compared to the MKII.
I´ll check it again... Which hfe´s did you use?
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- beedotman
- Diode Debunker
Information
small veroboard version with bias on Q2C and socketed trannies
should fit 1590B or 125B easily
should fit 1590B or 125B easily
- Attachments
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- 66_fuzz.pdf
- (71.94 KiB) Downloaded 204 times
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- controller700
- Breadboard Brother
That is a great looking 1966!
From where did you get the rotary switch? I can´t find a rotary with only two positions...
What hfe values did you use for the trannies, and how close does it get to the "real thing"?
From where did you get the rotary switch? I can´t find a rotary with only two positions...
What hfe values did you use for the trannies, and how close does it get to the "real thing"?
- beedotman
- Diode Debunker
Information
It dont need to be two position rotary switch, it could be with three or four positions - You can always limit amount of positions on rotary switches. Good idea is to use 3 pos. switch, two for mode changes and third for switch off battery.controller700 wrote:That is a great looking 1966!
From where did you get the rotary switch? I can´t find a rotary with only two positions...
What hfe values did you use for the trannies, and how close does it get to the "real thing"?
http://www.turretboard.org 4 life!
- controller700
- Breadboard Brother
Great idea!beedotman wrote:It dont need to be two position rotary switch, it could be with three or four positions - You can always limit amount of positions on rotary switches. Good idea is to use 3 pos. switch, two for mode changes and third for switch off battery.controller700 wrote:That is a great looking 1966!
From where did you get the rotary switch? I can´t find a rotary with only two positions...
What hfe values did you use for the trannies, and how close does it get to the "real thing"?
I never used these before..
- beedotman
- Diode Debunker
Information
Here's for example 12 position 1 pole switch - top view.
In red are marked slots that You can use to limit number of positions from 2 up to 11, it's really quite easy to do
In red are marked slots that You can use to limit number of positions from 2 up to 11, it's really quite easy to do
- Attachments
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- rotary.JPG (30.08 KiB) Viewed 4834 times
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