Trombetta - Bone Machine

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Trombetta - Bone Machine

Postby fuzzhuggerlover » 05 Aug 2016, 00:19

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Re: Trombetta Bone Machine

Postby fuzzhuggerlover » 05 Aug 2016, 00:24

Could be wrong not a pro.
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Re: Trombetta Bone Machine

Postby fuzzbunny » 05 Aug 2016, 07:19

Goop fail! :mrgreen:

Just kidding. Surprised by the overall build quality though.

Nevertheless, he builds good sounding pedals and people wait in line for them. I read recently he was going to stop taking orders and take a break/make a life change after he fulfills his list of pre-orders.

How does one view a .sch file?
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Re: Trombetta Bone Machine

Postby p.eat » 05 Aug 2016, 08:48

.sch is a schematic file for CADsoft EAGLE
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Re: Trombetta Bone Machine

Postby fuzzbunny » 05 Aug 2016, 17:03

p.eat wrote:.sch is a schematic file for CADsoft EAGLE


Thanks in advance to anyone who can convert it to a jpg, gif or png. :thumbsup
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Re: Trombetta Bone Machine

Postby fuzzhuggerlover » 05 Aug 2016, 17:47

Screenshot
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Re: Trombetta Bone Machine

Postby Saruman » 08 Aug 2016, 09:34

:applause: :applause: :applause:
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Re: Trombetta Bone Machine

Postby Intripped » 08 Aug 2016, 10:22

...mamma mia! :shock:
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Re: Trombetta Bone Machine

Postby rabbitgonemad » 08 Aug 2016, 20:05

Thanks for the pic and schematic!
When looking into mine I found that it has components underneath the perf board. Does yours too and are they included in the schematic? Please mind that mine is a 2-in-1 and it might be build like that to save room inside the enclosure.
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Re: Trombetta Bone Machine

Postby Saruman » 09 Aug 2016, 08:10

schem dont work.

Image
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Re: Trombetta Bone Machine

Postby triplesevener » 09 Aug 2016, 11:11

This circuit is definitely Jordan Bosstone based, as is most of Paul Trombetta's work. It looks awful similar to the Rockett WTF (which he also designed).

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Re: Trombetta Bone Machine

Postby fuzzhuggerlover » 10 Aug 2016, 07:40

Dont remember if there were underboard components or not. You can compare it to the schem.
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Re: Trombetta Bone Machine

Postby Ripdivot » 11 Aug 2016, 21:59

I have counted 7 resistors in the photo and only six on the schematic. I marked up the photo to try and account for the missing resistor.
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Re: Trombetta Bone Machine

Postby Intripped » 11 Aug 2016, 22:40

i think that the question marked resistor is 18k, and the other one seems to be 15k for the LED
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Re: Trombetta Bone Machine

Postby fuzzbunny » 12 Aug 2016, 00:16

Intripped wrote:i think that the question marked resistor is 18k, and the other one seems to be 15k for the LED

For sure, the '7th resistor' goes to the led.
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Re: Trombetta Bone Machine

Postby fuzzbunny » 12 Aug 2016, 00:20

2N2097A is PNP germanium. Looks like there is a handwritten 87 or 187 on it's top. Probably hfe.
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Re: Trombetta Bone Machine

Postby Ripdivot » 12 Aug 2016, 16:53

fuzzbunny wrote:
Intripped wrote:i think that the question marked resistor is 18k, and the other one seems to be 15k for the LED

For sure, the '7th resistor' goes to the led.


Ah yes, I see that now. I have corrected the image.
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Re: Trombetta Bone Machine

Postby Ripdivot » 12 Aug 2016, 17:04

fuzzbunny wrote:2N2097A is PNP germanium. Looks like there is a handwritten 87 or 187 on it's top. Probably hfe.


My Google search shows it being NPN silicon which jives with the schematic.
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Re: Trombetta Bone Machine

Postby Ripdivot » 12 Aug 2016, 17:11

Ripdivot wrote:
fuzzbunny wrote:2N2097A is PNP germanium. Looks like there is a handwritten 87 or 187 on it's top. Probably hfe.


My Google search shows it being NPN silicon which jives with the schematic.


Now I'm a little confused, as I search some more it is showing it to be germanium pnp as well.
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Re: Trombetta Bone Machine

Postby fuzzbunny » 12 Aug 2016, 17:42

Ripdivot wrote:
Ripdivot wrote:
fuzzbunny wrote:2N2097A is PNP germanium. Looks like there is a handwritten 87 or 187 on it's top. Probably hfe.


My Google search shows it being NPN silicon which jives with the schematic.


Now I'm a little confused, as I search some more it is showing it to be germanium pnp as well.



I think in a way we are both correct. :mrgreen:

There are different versions of Bosstones. Some with PNP in the Q2 position and others with NPN. Like you, I find different results for 2N2097 and 2N2097A.
Last edited by fuzzbunny on 12 Aug 2016, 18:14, edited 1 time in total.
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