The pics below show THE OLDEST, 1st run m400 Dave Made. Enjoy.
This is a original 1st run dave made. Got this from a break in 1992 paired up with a ac box.
Some clues to the first runs:
NO Dave Made name on the front of the box. Only M400 in big letters (front lower left corner)
Lettering for In and Out on the back of the box is bigger and different font vs todays current daves.
BRASS flathead screws around the entire case.
(4) flathead brass screws securing each of the the so-239's (nut and bolt)
Use of old skool brown carbon type resistors inside box. Note 10 ohm pill resistors.
Use of large green .01uf on the feedback resistor circuit and elsewhere
White open relay
DUAL stacked silver metal mica (SEMCO) off the relay
Combiners in and out different from todays daves
Fan cutout was a big circle without squares
Choke wraps on big transformer
solid copper piece to ground on the so-239's
Pill codes started with 1 or 2 (denoting 199(1) or 199(2). The below pictured box has pills inside from 1992.
blue chokes on small transformers
Whats not 1992 in this box:
The blue fireproof resistors on combiner (with red stripe)
The bigger power wire
One of the blue 10 ohm resistor.
There may be more i missed. Enjoy!
Heres some pics:
I got more pics but the above supplied should be enough to back my statements above.
Discuss
This is a original 1st run dave made. Got this from a break in 1992 paired up with a ac box.
Some clues to the first runs:
NO Dave Made name on the front of the box. Only M400 in big letters (front lower left corner)
Lettering for In and Out on the back of the box is bigger and different font vs todays current daves.
BRASS flathead screws around the entire case.
(4) flathead brass screws securing each of the the so-239's (nut and bolt)
Use of old skool brown carbon type resistors inside box. Note 10 ohm pill resistors.
Use of large green .01uf on the feedback resistor circuit and elsewhere
White open relay
DUAL stacked silver metal mica (SEMCO) off the relay
Combiners in and out different from todays daves
Fan cutout was a big circle without squares
Choke wraps on big transformer
solid copper piece to ground on the so-239's
Pill codes started with 1 or 2 (denoting 199(1) or 199(2). The below pictured box has pills inside from 1992.
blue chokes on small transformers
Whats not 1992 in this box:
The blue fireproof resistors on combiner (with red stripe)
The bigger power wire
One of the blue 10 ohm resistor.
There may be more i missed. Enjoy!
Heres some pics:
I got more pics but the above supplied should be enough to back my statements above.
Discuss