Ibanez - FP-777 Flying Pan

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

Hey, yo, sinnerooskie!

BYOC just released a Flying Pann kit that I am pretty sure is based on the original. I don't know if there's much you can derive from the following, but this is a link to the kit instructions:
http://buildyourownclone.com/soaringski ... ctions.pdf

Has a couple clear shots of the traces and all the component values... so that's something, I guess, heh.

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sinner
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Post by sinner »

Yeah, I have it already, but I'm more after the vintage board shots, I'm going to do the repro layout

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Professor SourTone
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Post by Professor SourTone »

Unfortunately the cap on the trace side is very fixed and I'm unwilling to disturb it...

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sinner
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Post by sinner »

Sir? You're uber awesome!!!

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Dirk_Hendrik
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Post by Dirk_Hendrik »

sinner wrote:Sir? You're uber awesome!!!

Let me second that !!
Sorry. Plain out of planes.

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sinner
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Post by sinner »

What's the PCB dimension if I may ask?

Also, could you do another PCB shot? More "stright" and "in the face" ;)

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Güero 2.0
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Post by Güero 2.0 »

Sweet!
Could you pelase, measure the trimpots? voltages or reisitance.
Tks!
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Post by Dirk_Hendrik »

I see three 100k trimmers. Why measure?
Sorry. Plain out of planes.

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Post by Dirk_Hendrik »

sinner wrote:What's the PCB dimension if I may ask?

Also, could you do another PCB shot? More "stright" and "in the face" ;)

You don't like the use of too much perspective correction either I presume :wink:
Sorry. Plain out of planes.

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Post by borislavgajic »

:thumbsup this is vintage enough for me :applause:

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sinner
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Post by sinner »

Dirk_Hendrik wrote:
sinner wrote:What's the PCB dimension if I may ask?

Also, could you do another PCB shot? More "stright" and "in the face" ;)

You don't like the use of too much perspective correction either I presume :wink:
Naaah, it's for professional circuit developers ;)

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Güero 2.0
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Post by Güero 2.0 »

Dirk_Hendrik wrote:I see three 100k trimmers. Why measure?
Bias?
"Come squeeze and suck the day.Come Carpe Diem baby!"

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Post by Dirk_Hendrik »

And why is that bias provided with a trimmer?
Sorry. Plain out of planes.

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Güero 2.0
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Post by Güero 2.0 »

You are a respected member of this forum and also the DIY world.
For this reason, respect should be mutual, I guess.
Please, don't play the stupid.
You know what I mean, when I kindly asked for trimpots adjustments.
If our colleague can read these adjustments would be fine.
"Come squeeze and suck the day.Come Carpe Diem baby!"

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Bernardduur
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Post by Bernardduur »

Ibanez - FP77.JPG
Readable schematic

I also added the resdef; got one nice old one in a trade. Sounds absolutely wonderfull!

The switch is different to what was on the factory schematic. It is a 6P5T switch that has 3 pre arranged settings; the 2 in between settings are used to gound both outputs so you don't hear the switch clicking.
'No more....... loud music.......'
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Post by armdnrdy1 »

Thanks for that Bernardduur!
I recently checked the factory schematic against available board shots.
Are you sure that the (red-trace side) 470K between C27 & R21 goes to Vref2?
I see the Vref2 trace running under the 470K, and the 470K connected to the ground side of uninstalled R20.
Also…good catch on the switch!
Couldn’t the same thing be achieved using a 4 pole, 3 position rotary switch and installing a 1M resistor to ground on each output?

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