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FDP Forum / Fender Amps: Vintage (before 1985) / Vintage Jon's Surf Bug Trem Mod

Previous 20 Messages

super mario
Contributing Member
****

USA

tone to the bone no other way
Jan 1st, 2012 02:47 PM Edit Profile Print Topic Search Topic
Not trying to hijack this thread but it does raise a question related the trem circuit on my '76 SFDR and the residual "tick" that I hear when the circuit is activated - will installing the Surf Bug or Black Widow cure the tick?

roadhog96

USA / CT.

Jan 1st, 2012 06:02 PM Edit Profile Print Topic Search Topic
I like to hear the answer on this one also. I believe they are built using the same design so my guess would be there will be no diffetence but then again this is just a guess.

plexi69

U.S.A.

HEY THERE, HI THERE, HO THERE
Feb 18th, 2012 03:12 PM Edit Profile Print Topic Search Topic
Sorry to resurrect this from the past, but I was wondering if anyone was able to get a Black Widow? I have not heard back from Austin Amp and wonder if anyone has.
Mudcloth,
Do you have any bugs for sale or know how I can obtain one? Do you know if these will work in the Brown face circuit? Thank you.

kblues

NYC Area

Feb 19th, 2012 10:11 AM Edit Profile Print Topic Search Topic
Weber sells them. I just recently bought 2.

plexi69

U.S.A.

HEY THERE, HI THERE, HO THERE
Feb 19th, 2012 11:38 AM Edit Profile Print Topic Search Topic
How do you like the Weber version? Did you buy the Opt1 completed model or did you go the roll your own route? Thanks.

kblues

NYC Area

Feb 19th, 2012 03:37 PM Edit Profile Print Topic Search Topic
I bought the completed model but haven't used it yet.

Steve Dallman
Contributing Member
*****

Merrill, Wisconsin

Dangit! Hot weather.
Feb 21st, 2012 02:42 PM Edit Profile Print Topic Search Topic
I built my own for my 67 blackface DR. I used a rather large photo resistor I took out of a commercial yard light at work and a neon bulb. I covered it with a plastic cap off a soft drink bottle. It worked great, and didn't have the loading the original bug had.

amphead4

Cincinnati, USA

Feb 21st, 2012 03:22 PM Edit Profile Print Topic Search Topic
Steve, are those parts still available?

Steve Dallman
Contributing Member
*****

Merrill, Wisconsin

Dangit! Hot weather.
Feb 22nd, 2012 09:40 AM Edit Profile Print Topic Search Topic
They were parts I had or found in a junk box at the manufacturing plant I worked at for 26 years. I just got lucky.

anteriorl5

USA

Feb 22nd, 2012 09:50 AM Edit Profile Print Topic Search Topic
Hey Steve, maybe it would be best if you went into production. Put me down for 3 or 4...

SpiroGiro

YorkshireUK

Apr 2nd, 2012 04:21 AM Edit Profile Print Topic Search Topic
...is it possible for someone to demo this effect? I am not sure from what I am reading here if it enhances Vibrato in some capacity or just hard wires-in 'tremolo' across all settings??

plexi69

U.S.A.

HEY THERE, HI THERE, HO THERE
Apr 7th, 2012 09:27 AM Edit Profile Print Topic Search Topic
Will these type bugs work on the earlier brownface trem or are they strictly for blackface amps? Thanks.

vibrasonic

canada

Apr 8th, 2012 05:26 AM Edit Profile Print Topic Search Topic
Plexi69

The bug is for the BF and later fender amps. The bown and other amps like the vibrochamp and princeton had what they call bias vary or harmonic vibrato.

The BF-SF vibro champ and princeton always kept the bias vary circuit and never used the bug.

telewired
Contributing Member
******

Kansas City, Mo.

counting it all joy
May 4th, 2012 07:11 AM Edit Profile Print Topic Search Topic
I have never found a trem that goes slow enought for me--will the Black Widow go real slow--I am looking for a super slow swelling sound--

amphead4

Cincinnati, USA

May 4th, 2012 01:13 PM Edit Profile Print Topic Search Topic
The LDR doesn't set the frequency. The three caps on the oscillator side of the tube (in series between plate and grid) set the frequency.

Double the value of one of those caps and the frequency range will drop. If not slow enough, double the value of another of the three caps. Beware the whole range shifts so the highest rate moves lower too.

Previous 20 Messages

FDP Forum / Fender Amps: Vintage (before 1985) / Vintage Jon's Surf Bug Trem Mod

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