Danelectro - D-7 Fab Fuzz

B3ar · Post by **B3ar** » 02 Feb 2014, 01:06

I gather standard modus operandi for the Fab series is a switching/buffer/I-O board and an effects board. I've included linked pics of both. Without tracing, I'm surprised at the effects board--a LF353 and a 2n7000 seem odd for a fuzz.
lickr.com/photos/112391638@N03/12259992443/
flickr.com/photos/112391638@N03/12260408636/
flickr.com/photos/112391638@N03/12260261164/
flickr.com/photos/112391638@N03/12260259234/
flickr.com/photos/112391638@N03/12259982213/
flickr.com/photos/112391638@N03/12260399036/

C1 47n
C2 10u
C4 47n
C5 100u
C6 .47u
C13 10u
C14 1u?
C15 1u

R2 150k
R3 150k
R4 51k
R5 1.5k
R6 5.6k
R7 100k
R8 1M
R9 1k
R10 10k
R11 22k
R13 82k
R14 100k
R18 1.5k
R19 0
R20 0

IvIark · Post by **IvIark** » 02 Feb 2014, 02:10

The 2N7000 looks as if it may be for millennium bypass

tube-exorcist · Post by **tube-exorcist** » 02 Feb 2014, 02:18

IvIark wrote:The 2N7000 looks as if it may be for millennium bypass

No, it is an input buffer.

IvIark · Post by **IvIark** » 02 Feb 2014, 02:30

tube-exorcist wrote:No, it is an input buffer.

Aah right, I was suspicious about it being close to the LED.

mirosol · Post by **mirosol** » 02 Feb 2014, 21:35

Looks like a pain to trace. Schem would be a cool thing to see though... I bet it could be tweaked to something useful.

Any idea on the pot values? Three A100Ks would suggest some sort of rat derivative, but i can't spot any clippers on the photos.

B3ar · Post by **B3ar** » 03 Feb 2014, 03:46

Does indeed look like a pain to trace. So I was hoping one of you experts would tackle it.

I didn't bother to measure the pots. Next time I take it apart.

Only diode on the board is the LED. No SMD transistors or diodes to be found.

B_Y_O_Bass · Post by **B_Y_O_Bass** » 18 Jul 2017, 20:42

This thread is older than TWD. But still a great pedal for the $$$

Vol pot is B103
Fuzz pot (Middle) is A254
Tone pot is A502

Like my predecessors, I am hammering out a schematic.
So many pedals, so little time. If one user likes or replies to this post, I will bump it up the priority list.

Post by **modman** » 19 Jul 2017, 15:39

it's a miracle the gut shots are still online after 3 years...
please, always resize and attach gut shots of untraced pedal to the thread.

Some pedals got traced years after the guts shots were posted on this forum.
in fact, we forgot to celebrate 10 years FSB last June... 2007-2017

Dirk_Hendrik · Post by **Dirk_Hendrik** » 19 Jul 2017, 17:41

modman wrote: in fact, we forgot to celebrate 10 years FSB last June... 2007-2017

Ouch... apologies.... I forgot completely.
10 years... is it really that long!? For a forum that wouldn't last 6 months.. Of which members were called terrorists etc. etc.

Cool!!