I’ve really come to like and prefer this mounting
Sitting on my hands, trying to take a break 🙂btw. Cody - doing something lately ......... ?
Actually… accruing parts for XA252. Soon…
extra dirty wiring of additional caps
route power wires to amp pcbs ditto from Cap Bank pcb, connect additional caps with wires ditto in parallel with last cap of rail on Cap bank pcb; solder wires underneath
as is now, fat chance to get dirty GND to amp pcb
route power wires to amp pcbs ditto from Cap Bank pcb, connect additional caps with wires ditto in parallel with last cap of rail on Cap bank pcb; solder wires underneath
as is now, fat chance to get dirty GND to amp pcb
Good progress Plott.😉
Scryer is getting action this weekend!
Successful, drama free power up of left channel.
Bench supply +/-28VDC
1.7A bias current
5U 360mm heatsink is 45°C ~1hour
Q202/203 was a bit too hot for my piece of mind and changed to a larger heatsink, 10° cooler now 🙂.
Movin’ on the the right channel…..
Scryer is getting action this weekend!
Successful, drama free power up of left channel.
Bench supply +/-28VDC
1.7A bias current
5U 360mm heatsink is 45°C ~1hour
Q202/203 was a bit too hot for my piece of mind and changed to a larger heatsink, 10° cooler now 🙂.
Movin’ on the the right channel…..
Attachments
these 2 BD transistors ..... Pa is not even using heatsink for that sort of dissipation
ZM is Chicken
Vunce is double Chicken
ZM is Chicken
Vunce is double Chicken
Regarding bleeder resistor, where is the best placement, at the input or at the output of the CRC power supply?
Many thanks🙂
Many thanks🙂
Another Scryer is Born!!
Vibrant and healthy 55pounder is singing away in the main system. Only a short time listening, but Scryer sounds real good so far. Super quiet at idle, no noise or hums heard right at the speakers 😉.
A tiered dual mono psu using SLB's, Triad 250va 24v trafo's and SSR soft start board is all housed in a recycled multichannel amplifier chassis. The heatsinks are a fantastic size for this project 360mm x 210mm x 50mm. I will add speaker protection to Scryer but was a bit impatient and wanted to hear this amp sooner than later.
Thank you for this project ZM, it's a keeper!! What's next??
Vibrant and healthy 55pounder is singing away in the main system. Only a short time listening, but Scryer sounds real good so far. Super quiet at idle, no noise or hums heard right at the speakers 😉.
A tiered dual mono psu using SLB's, Triad 250va 24v trafo's and SSR soft start board is all housed in a recycled multichannel amplifier chassis. The heatsinks are a fantastic size for this project 360mm x 210mm x 50mm. I will add speaker protection to Scryer but was a bit impatient and wanted to hear this amp sooner than later.
Thank you for this project ZM, it's a keeper!! What's next??
Attachments
Plott, you should also rotate the toroid 180°, with wires exiting opposite side of cap and circuit
Nice build! Like the donor organ holder!! Having repurposed a behemoth I can imagine the fun you had planning it. An unexpected benefit of donor chassis’ - the ‘can I do it different’ nights are half the fun 🙃
Fugly!Another Scryer is Born!!
Vibrant and healthy 55pounder is singing away in the main system. Only a short time listening, but Scryer sounds real good so far. Super quiet at idle, no noise or hums heard right at the speakers 😉.
A tiered dual mono psu using SLB's, Triad 250va 24v trafo's and SSR soft start board is all housed in a recycled multichannel amplifier chassis. The heatsinks are a fantastic size for this project 360mm x 210mm x 50mm. I will add speaker protection to Scryer but was a bit impatient and wanted to hear this amp sooner than later.
Thank you for this project ZM, it's a keeper!! What's next??
How it sounds, makes you happy?