Transformer lists for projects.

[MatthisD]

Assuming the Cinemag version is identical then there is  no need to change the circuit. Connect the primaries in parallel for 3125 ohms and secondary for 600 and also the feedback winding connected to ground at one point which acts as an electrostatic shield.

If you get a chance to measure the resistance of the windings please let us know.

 

[Murdock]

Hey Matthis, thanks for your reply! Sorry for my late reply, I just had the time to look into this.
Is this the right way to connect the S217D in the G-Pultec?

The numbers in the S217D diagram are just to show the corresponding Lundahl pinout.

 

[MatthisD]

Yes, the resistor on the secondary might not be needed.

 

[Murdock]

Thanks!
OK, I will try with and without the resistor. When I leave the resistor out, should I put a jumper in place of the resistor?

 

[MatthisD]

No jumper, although you would need to be able to measure  the frequency response to see what effect that resistor has.

 

[dukasound]

On first LA-2A I used Sowters, on second Jensen JT-11P for input and UTC A-24 for output. Can I use Lundahl 1:1 LL1540 on input on next project??