Tube dual opamp


Posted on Jul 3, 2012

Here are photos of a tube unit including an analog multiplier, phase discriminator and a relay control driver (a big relay was inserted in a socket near two potentiometers on the left). Used in ground control gear (don`t ask me - control of what..., all I know it`s ground, not mobile, piece). Chassis is machined of a solid aluminum piece - 31*12*5 cm. There`s a total of nine miniature tubes (2 RF pentodes, 7 dual triodes). The compartments on the left, top right and bottom right are normally covered with tin lids, so the whole unit is one smooth brick with a window in it.



These units are stacked vertically in a rack, windows form a chimney for air cooling. The thing ran on a low B+ - all caps are 160V rated, the largest resistors 1W rated. Note the daisy-chained heater bus (white-blue wires) - something you don`t want




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Control of three phase Induction motor AT89S52
40 meters CW Transceiver
Ultrasonic Pest Repeller Circuit
Echo Bender V2
galaxi digicolor 26 chassis ittsel
laser diy schematics
Nathans Z80 Project Mark 2
Color Sensor from a Reversed LED and Op Amp
JCM800 2204 bias problem
7400 SIREN
NONPRECISE PHANTASTRON VARIABLE DELAY
JS20 single-junction transistor time relay circuit



Top