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Just finished building my pair of Drip Fairchild 670 units
Old 28th October 2014
  #31
Here for the gear
 

Quote:
Originally Posted by bancho View Post
Awesome!
Where did you get these stockli knobs? originals?
(as I'm also working on this project I'm in eager search for those)

...and what are those circuits inside the chassis with digital dials?
Hi bancho,

thks for the compliment ;-)
the knobs are often in ebay. Search for "General radio resistor decade"....
they have the Stocklis on them (General Radio KNB-2). The KNSP-8 (the round ones) also via ebay. search for " General Radio Knob". But be careful, many of thems are grey, not black !

THe KNB-1 (the three smaller pointer style knobs) are a bit rare, but also via ebay ;-) Mine are still on the way to Germany from US....

The small PCBs with the Digitals are Powersupplies. the left one generates the 5 V DC for the Relays out of the unused 6,3 V AC secondary winding from the Sowter 0577 (T303/304).The tiny PCB in the middle with the two Caps is the rectifier for that. The right DC Power PCB has no output, just measures the Heater Voltage for the 6386 Tubes. 6,1v instead of 6,3v to get more lifetime from those expensive bastards ;-)
http://www.engineeringshock.com/blue...ay-lm2596.html

the two PCBs at the XLRs are Hardwired Bypass with Relays, called "HWBP-36" from silent arts in Berlin:
heres a list of his PCBs: http://groupdiy.com/index.php?topic=39570.0
contact Volker ! Very friendly & fast response via mail: [email protected]

If you need more help, just let me know ;-)
Hope, I could help you !
Greets,
Bernd

Last edited by cptpfeffer; 28th October 2014 at 11:21 PM.. Reason: edited text
Old 9th November 2014
  #32
Lives for gear
 
rob S's Avatar
beautiful work
Old 3rd December 2014
  #33
Here for the gear
 

Smile genuine general Radio knobs

finally I got them all :-)
genuine general Radio knb2, knb1 and knsp8 & 6

Now my Drip F670 v2 is finished :-)

Greets,
Bernd
Attached Thumbnails
Just finished building my pair of Drip Fairchild 670 units-dscn5994.jpg   Just finished building my pair of Drip Fairchild 670 units-dscn5992.jpg   Just finished building my pair of Drip Fairchild 670 units-dscn5996.jpg  
Old 9th March 2015
  #34
Lives for gear
 
exwel's Avatar
Quote:
Originally Posted by cptpfeffer View Post
finally I got them all :-)
genuine general Radio knb2, knb1 and knsp8 & 6

Now my Drip F670 v2 is finished :-)

Greets,
Bernd
Looks great how did you get the fairchild name in the metering?
Old 13th March 2015
  #35
Here for the gear
 

Quote:
Originally Posted by exwel View Post
Looks great how did you get the fairchild name in the metering?
you can get them with the "Fairchild" on the scale from factory ;-)
just ask for it when ordering:-)

Simpson Model 27 looks genuine.
http://www.meterdistributor.com
mail them, they are very friendly, they will print the "Fairchild" Logo onto the scale for you on request, no extra charge ;-)
Old 17th April 2015
  #36
Here for the gear
 

Drip Fairchild 670 Build

I have my tech building the unit with all the Sowter Transformers and he has ran into a little snag. Drip has not been helpful at all to him in questions can anyone help him out if he poses the question he is having the problem with this build. We are trying to get this unit up and running. Thanks
Old 11th June 2015
  #37
Here for the gear
super sweet!
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