Morning all,
I have Phoenix Gold M44 and M50 amps.
I am using M50 amp for midwoofer.
I know, PG typically does not release documents.
For M50 , Even no music is playing, I can hear a crackling sound from speakers if they are connected to the speaker terminal. It still does it with the RCA’s unplugged so Speakers connected but no rca signal. We measure each channel (L and R) voltage. DC voltage is not under 50mV. I think 50mV is still considered acceptable. Problem is continue for both channels. We hear turn on and or turn off pops too. The m50 is a powerful and beautiful sounding amp if it’s working properly. Would you support us on this matter?
I need olsa Gain Pot. Nobody makes that 50K c taper pot anymore. I try to rebuilt them and clean them.
It would be great if there was a schematic diagram. Does anyone have such a file on this subject?
I have Phoenix Gold M44 and M50 amps.
I am using M50 amp for midwoofer.
I know, PG typically does not release documents.
For M50 , Even no music is playing, I can hear a crackling sound from speakers if they are connected to the speaker terminal. It still does it with the RCA’s unplugged so Speakers connected but no rca signal. We measure each channel (L and R) voltage. DC voltage is not under 50mV. I think 50mV is still considered acceptable. Problem is continue for both channels. We hear turn on and or turn off pops too. The m50 is a powerful and beautiful sounding amp if it’s working properly. Would you support us on this matter?
I need olsa Gain Pot. Nobody makes that 50K c taper pot anymore. I try to rebuilt them and clean them.
It would be great if there was a schematic diagram. Does anyone have such a file on this subject?
I've emailed someone for the diagram.
What's the pot used for?
The taper letter designations aren't universal. Have you looked for a pot with the same taper (looking at the specs, not the letter designation)?
What's the pot used for?
The taper letter designations aren't universal. Have you looked for a pot with the same taper (looking at the specs, not the letter designation)?
@Perry Babin Thank you for your reply..
As I learn "Alps" stopping making the 50K c taper pot in that figuration.
https://www.mouser.com/datasheet/2/15/AlpsAlpine_3_4_2024_rk09k-3412491.pdf
If you find a schematic diagram It will really be very useful for me.
Thank you for your effort.
As I learn "Alps" stopping making the 50K c taper pot in that figuration.
https://www.mouser.com/datasheet/2/15/AlpsAlpine_3_4_2024_rk09k-3412491.pdf
If you find a schematic diagram It will really be very useful for me.
Thank you for your effort.
Gain pot of my PG M50 amp is not working properly. I am trying to find suitable pot instead of original one. Nobody makes that 50K c taper pot anymore.
Gain pot has 5 leg in PG M50. Now, It's very hard find to it.
Gain pot has 5 leg in PG M50. Now, It's very hard find to it.
The reverse log pot is difficult to find but you can use a linear taper pot. It may not work precisely the same (output level vs rotational position) but it will work.
Perry Would we have to connect the pins with wires Bourns instead of Gain Pot of PG M50?
Bourns PTV111-1420A-B503 Potentiometers
Bourns PTV111-1420A-B503 Potentiometers
See attached.
How large is your pot?
https://www.bourns.com/docs/Product-Datasheets/PTV09.pdf
^^^ that's a 3 terminal pot.
Another option may be to use a standard trimmer pot and use a screwdriver to adjust the gain. If you can't get a reverse log, use a standard log pot facing the opposite direction.
How large is your pot?
https://www.bourns.com/docs/Product-Datasheets/PTV09.pdf
^^^ that's a 3 terminal pot.
Another option may be to use a standard trimmer pot and use a screwdriver to adjust the gain. If you can't get a reverse log, use a standard log pot facing the opposite direction.
I am not certain how to express my gratitude for this wonderful attachments you shared.
I think it was impossible for me to find this.
Thank you for your effort and time.
If we can salvage the M50, it will be on this board. Can't wait to hear back. I'll keep you posted.
I think it was impossible for me to find this.
Thank you for your effort and time.
If we can salvage the M50, it will be on this board. Can't wait to hear back. I'll keep you posted.