Pete Cornish - TB-83 [goop-alarm]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.

Pete Cornish - TB-83 [goop-alarm]

Postby analogguru » 02 Mar 2009, 14:17

There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
analogguru
Old Solderhand
 
Posts: 3285
Joined: 26 Jun 2007, 14:58
Has thanked: 0 time
Have thanks: 116 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby soulsonic » 02 Mar 2009, 21:51

Why would I purchase a second-hand one for $400 when I can purchase a brand new one for $300?
You can even purchase the "Extra" version with footswitchable bypass, etc... for less than the $450 BIN.

Looks like fun to repair.
User avatar
soulsonic
Old Solderhand
 
Posts: 3531
Joined: 27 Jun 2007, 04:38
Location: Buffalo, NY
Has thanked: 56 times
Have thanks: 280 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby ech0es » 02 Mar 2009, 22:13

soulsonic wrote:Why would I purchase a second-hand one for $400 when I can purchase a brand new one for $300?
You can even purchase the "Extra" version with footswitchable bypass, etc... for less than the $450 BIN.

Looks like fun to repair.


Because you have to wait for 2 years to buy a brand new

I don't understand this topic: the photo gives none informations about the circuit, what's the goal to show that ?
ech0es
Resistor Ronker
 
Posts: 260
Joined: 30 Jun 2007, 14:51
Has thanked: 0 time
Have thanks: 6 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby Fuzzer » 02 Mar 2009, 23:26

"WE BUILD EQUIPMENT FOR MUSICIANS TO MAKE MUSIC AND NOT FOR SPECULATORS TO MAKE MONEY"


We would like to take this opportunity to notify our customers that while there can be a considerable wait time for our Stand Alone Effects, it is by NO MEANS up to 3 years. The reason for the wait is that we accept each order individually and hand build the effect(s)
singly for each musician in the same manner and with the same attention to detail as with our stage systems.

The exaggerated wait time misinformation seems to have been deliberately spread by unscrupulous persons in order to ridiculously inflate the prices of our effects in order to make a profit using the Pete Cornish name.

If you are asked to pay an unreasonable amount over that reflected in the Stand Alone Effects price guide, listed within this site, this is excessive and way over the current retail price for new items.

Also please note that all claims that pedals are "New" should be investigated fully - the only truly new pedals are the ones sold by my dealers or direct from ourselves. All Stand Alone Pedals being sold by any other person, even if claiming to be a shop (other than our named dealers), should be treated as "used" or "second hand" and priced accordingly.
The Freestompboxes Forum search function is soo great, use the search function..., the S E A R C H function.
User avatar
Fuzzer
Transistor Tuner
 
Posts: 1037
Joined: 16 Sep 2007, 16:17
Has thanked: 0 time
Have thanks: 20 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby analogguru » 03 Mar 2009, 04:00

ech0es wrote:
soulsonic wrote:Why would I purchase a second-hand one for $400 when I can purchase a brand new one for $300?
You can even purchase the "Extra" version with footswitchable bypass, etc... for less than the $450 BIN.

Looks like fun to repair.


Because you have to wait for 2 years to buy a brand new

I don't understand this topic: the photo gives none informations about the circuit, what's the goal to show that ?

That you won´t get any information about the circuit when you (buy and) open such a unit - unless you degoop it. With this picture you can see the necessary amount of work to degoop it and you can make a better decision to buy it - or better save your money.

analogguru
There´s a sucker born every minute - and too many of them end up in the bootweak pedal biz.
analogguru
Old Solderhand
 
Posts: 3285
Joined: 26 Jun 2007, 14:58
Has thanked: 0 time
Have thanks: 116 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby silverface » 03 Mar 2009, 10:18

Some guy on another forum opened up a P2 fuzz, and said the red goop stuff was just spray paint which scraped right off. Don't know about this black stuff though.
User avatar
silverface
Solder Soldier
 
Posts: 156
Joined: 25 Aug 2008, 20:33
Location: Point Place, Wisconsin
Has thanked: 4 times
Have thanks: 9 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby Krinkle » 03 Mar 2009, 22:06

Which forum? Where? Did he reverse engineer it?
Krinkle
Breadboard Brother
 
Posts: 133
Joined: 27 Aug 2008, 21:48
Has thanked: 0 time
Have thanks: 4 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby Fuzzer » 03 Mar 2009, 22:09

The Freestompboxes Forum search function is soo great, use the search function..., the S E A R C H function.
User avatar
Fuzzer
Transistor Tuner
 
Posts: 1037
Joined: 16 Sep 2007, 16:17
Has thanked: 0 time
Have thanks: 20 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby silverface » 04 Mar 2009, 09:43

Krinkle wrote:Which forum? Where? Did he reverse engineer it?


Some gilmour related forum I think, can't quite remember where i saw it. He only opened it up and took some pics.
User avatar
silverface
Solder Soldier
 
Posts: 156
Joined: 25 Aug 2008, 20:33
Location: Point Place, Wisconsin
Has thanked: 4 times
Have thanks: 9 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby sopapo1 » 09 Feb 2019, 15:00

Finally :D in other forum:
https://www.diystompboxes.com/smfforum/ ... c=112790.0

this user has, at less partially, degoop a cornish tb83, and its look like its a greg fryer or covington fireplace
We dont know yet the specifics ( tranny, caps values etc) but in the end its look like we could have the whole thing easily...

For this message the author sopapo1 has received thanks:
karul (10 Feb 2019, 03:04)
sopapo1
 
Posts: 17
Joined: 26 Dec 2007, 04:01
Has thanked: 1 time
Have thanks: 1 time

Re: Pete Cornish - TB-83 [goop-alarm]

Postby d95err » 13 Feb 2019, 08:21

Greg Fryer gives a hint on the TB-83 (and his own boosters) on his blog in his design "Grand Poobah 3-in-1 booster" here:
https://fryerguitars.wordpress.com/pedals-tech/

For this message the author d95err has received thanks:
Intripped (14 Feb 2019, 12:41)
d95err
 
Posts: 6
Joined: 05 Nov 2009, 18:10
Has thanked: 1 time
Have thanks: 3 times

Re: Pete Cornish - TB-83 [goop-alarm]

Postby sopapo1 » 14 Feb 2019, 22:51

Yes, its all very similar for what i have seen, the circuits of the covington, fryer and cornish (supposedly), the same values in all minus the input cap (the usual variation, insert your preference here), the strange low value resist of the output of the fryer ( 560) and the 120 k on the output of the fryer, covington vs the 47 k in the cornish..
The trannys are the usual interchageable suspects (bc182, bc239, bc549)....
sopapo1
 
Posts: 17
Joined: 26 Dec 2007, 04:01
Has thanked: 1 time
Have thanks: 1 time


Return to Boutique Stompboxes dissected...

Who is online

Users browsing this forum: No registered users and 10 guests