Hi,
Transformer for my Hiraga build showed up today.
(Will be making a thread of my experience once I have it fully assembled…)
Its a 300VA 30V CT.
Before I created a significant amount of magic blue smoke, thought I would confirm that my connection strategy is correct…
On the primary:
Orange and White - get connected to the line live
Black and Brown - get connected to the line neutral
On the secondary:
Red - Gets connected to PS board AC in.
Yellow - Gets connected to PS board AC in.
Gray and Blue - Get connected together, and get connected to PS board Ground.
Im really hoping I have that correct?
What I’m concerned about is the GRY/BLU getting connected to ground…
Really appreciate your time!
Thanks,
Per
Transformer for my Hiraga build showed up today.
(Will be making a thread of my experience once I have it fully assembled…)
Its a 300VA 30V CT.
Before I created a significant amount of magic blue smoke, thought I would confirm that my connection strategy is correct…
On the primary:
Orange and White - get connected to the line live
Black and Brown - get connected to the line neutral
On the secondary:
Red - Gets connected to PS board AC in.
Yellow - Gets connected to PS board AC in.
Gray and Blue - Get connected together, and get connected to PS board Ground.
Im really hoping I have that correct?
What I’m concerned about is the GRY/BLU getting connected to ground…
Really appreciate your time!
Thanks,
Per
Indeed using a bulb tester!
Well, no blue smoke…
But, there is certainly an issue.
Without amp boards connected to power supply boards, the speaker protection circuits are clicking on as they should. So, no signal to the speaker protection, they turn on and are presumably working as they should.
(speaker protection boards are connected to their own 12v transformer)
When I power up the amp boards, the speaker protection boards are not engaging.
The amp boards are the Jim’s audio Hiraga super 30 boards, with the power regulator built in.
I am unable to adjust the regulators to see 22v as required
The power out of the power supply boards is 42v DC on both the boards unloaded.
The amp boards require between 25 and 35 volts.
I think, I need to run the two power supply boards with a 15v supply from each of the dual secondaries as opposed to at 30 with a center tap
Problem is, I will be a bit short on power…
Any thoughts would be greatly appreciated.
thanks!
Per
Well, no blue smoke…
But, there is certainly an issue.
Without amp boards connected to power supply boards, the speaker protection circuits are clicking on as they should. So, no signal to the speaker protection, they turn on and are presumably working as they should.
(speaker protection boards are connected to their own 12v transformer)
When I power up the amp boards, the speaker protection boards are not engaging.
The amp boards are the Jim’s audio Hiraga super 30 boards, with the power regulator built in.
I am unable to adjust the regulators to see 22v as required
The power out of the power supply boards is 42v DC on both the boards unloaded.
The amp boards require between 25 and 35 volts.
I think, I need to run the two power supply boards with a 15v supply from each of the dual secondaries as opposed to at 30 with a center tap
Problem is, I will be a bit short on power…
Any thoughts would be greatly appreciated.
thanks!
Per