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Questions about the Frigate®

Post here about your headphone amplifier kit Frigate®, get help - for Augustica® customers!

Re: Questions about the Frigate®

Postby comelsys » 03 Mar 2014, 15:45

I measured the voltage across the diodes and resistors:
D1 - 0,666V
D2 - 0,663V
D3 - 0,664V
R14 - 27.8V
GND - D1 - 0.67V
GND - D2 - 1.33V
GND - D3 - 1.98V
GND - pin 8 or pin 3 - 29.5V
GND - R12 or R16 - 9.8V
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Re: Questions about the Frigate®

Postby Augustica.com » 03 Mar 2014, 21:12

Thank you.

The correct voltage between the GND and the leads of R14 and R30 that are connected to the cathodes should be about 16.5 VDC.
The correct voltage between the GND and the leads of R12, R16 and R28, R32 that are connected to the grids should be about 2.0 VDC.

In the previous post you stated that when you swap the tubes the wrong voltages are moving from the left channel to the right channel. Is this still the case?
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Re: Questions about the Frigate®

Postby comelsys » 04 Mar 2014, 15:20

Yes, if I change the tube positions, then it changes and measurement results. Measurements on another channel then become as in the schematic.
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Re: Questions about the Frigate®

Postby Augustica.com » 04 Mar 2014, 18:52

OK, send me an email with your current mailing address and will send a pair of 6H30Pi and resistors. The tubes are new and just came from New Sensor last week. I only checked them to verify that they work and measured voltages. You will need to give them about 50 hours of brake in period to get the best sound out of them. I see that you have HD 800 phones. They should work very well with Frigate.
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Re: Questions about the Frigate®

Postby comelsys » 05 Mar 2014, 14:45

Thanks a lot! But I want to order two power supplies: Trident ® and Janus ®, transformer 182L12, and if you have 182G22.
Do I have to order them online?
And then you attach 6H30Pi and resistors to my order.
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Re: Questions about the Frigate®

Postby Augustica.com » 05 Mar 2014, 15:41

Yes, you have to order them online. We have all of them in stock except for 182G22. We can ship them all out to you the same day you order them by Canada Post or FedEx.
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