For Sale Bass DI Output XFMR,s

[CJ]

Use these output transformers to build a 6N1P based DI box.

$80 plus shipping.

US shipping is $15 flat rate for 1 to 6 transformers.

International would be USPS First Class and varies with location.

8K to 600 ohms (3.67:1)
Pri ind. 300 Henrys @20 Hz

PayPal

Thanks for looking!

cj

 

[Potato Cakes]

I'll take two of them, please. Do you happen to have any recommended schematics that will suit these transformers well?

PM'd

Thanks!

Paul

 

[maxwall]

1:7 or 7:1 ratio ?

 

[duantro]

I still have my pair. I need to get a case to fit these and wire them up.

 

[CJ]

These are 8K to 600 ohms or 3.67:1 turns ratio.

 

[dmp]

I'll take two of them, please. Do you happen to have any recommended schematics that will suit these transformers well?

I built a pair of Bass DI using the schematic in this thread
They are incredible - highly recommend CJ's transformers!

 

[maxwall]

What is the AC voltage on the input of the B+ power supply , my guess 220VAC ~30 to 50ma , its missing in the schematic .....?

 

[dmp]

I used this Edcor for the power transformer, 250v and 9v. You can adjust the dropping resistors in the PI filters to hit the target B+ and the 9v works great for the heaters.
Early DIY schematic had 200VAC for the PT

PS : move build questions back to the lab

 

[djn111]

Hello CJ,

I am interested in two, I will send you a PM

DJN

 

[Martan]

Bump for CJ. Just received one and it is the real deal!

 

[Potato Cakes]

Got one mine finished up using these transformers. I'm powering it with a an SMPS and then a tube PSU from Frog Pedals which takes a 9-12V SMPS and regulates on down to 6V for the heater and also boost the voltage to 150V-250V (trimmer adjustable) for the plate. Worked perfectly the first time and very quiet. Surprised the SMPS did not need any filtering. I am using a PCC88 from Christian Whitmore and the second build will use an ECC88. Also this thing as ton of gain. One could record from this DI to a line level input.

Wiring is still not as neat as I wanted and I messed up adding the third XLR on the chassis. If I had planned a little better I would have asked @dandeurloo if I could have ordered these cases with this additional D series cutout. If I have a client ask for one then I will.

Thanks again, CJ!

Thanks!

Paul

 

[jonasnoble]

Use these output transformers to build a 6N1P based DI box.

$80 plus shipping.

US shipping is $15 flat rate for 1 to 6 transformers.

International would be USPS First Class and varies with location.

8K to 600 ohms (3.67:1)
Pri ind. 300 Henrys @20 Hz

PayPal

Thanks for looking!

cj

Hey CJ, I DM'd also. You still have some of these? If so, I'd like 3 of them.

Thanks!