For Sale Gain stage PCB with 6H30∏/6922 and Lundhal transformer mounting option

[sksb]

This PCB can be used for Dac output stage or Pre amplifier.
This can be used Balanced or single ended.
Lundhal output transformer can be mount in 2 ways.Please see images.

2 pieces CMC Teflon tube socket is installed.
K&K audio CCS to set bias is also on pcb for both tube.

PCB is double layer FR4 board with 2.4mm thick.
I can share 6H30PI/6922 schematic with buyer and can support for various type of build.

Selling price : $75 including PayPal charges

Shipping to world will be under $20 through INDIA post Registered mail (trackable) which will take 2-4 weeks.

Thanks for looking.

 

[sksb]

example of Lundhal transformer placement

 

[jean-paul]

Hi it would be helpful to mention input sensitivity, input impedance, output impedance and gain. Most won't need too much gain (if they need gain at all).

 

[sksb]

Output impedance depends upon which Lundhal transformer being used in output.
Gain is around 9db and can be adjusted with Output Lundhal transformer.
Example schematic is attached.

Price drop : $50 including PayPal charges