[bulgin]

Hi Guys

Has anyone owned or still use one of these? I've been using mine for some years now and I think this is a nice piece of kit that punches far above its weight. I've already replaced the captive power lead on mine with an IEC mains socket to use a better mains cable. Next, when time permits, I want to upgrade the socketry at the back with goldplated items and the final upgrade will be to replace the components on the mm and mc boards with better quality items - especially the resistors and caps.

bulgin

[anal.log]

I'm still using on as well. Some of the pots started to get quite crackly. The volume pot is fine cause its sealed.
But the balance pot was intermittent. I took out the cheap pot and replaced it with a pair of precision resistors.
I also own the matching Basic M2A power amp and have since bypassed the left and right volume pot as well.

[anal.log]

Duh stupid me.
I've got the C2 not the C1.
 

[Rom]

Hi Anal.log

I just fixed mine (Basic C2) and was on storage for years when it went faulty with only one side was working.

The culprit was the tiny alps balance pot. I was looking for replacement locally here and can't find one so a friend of mine open it up and what we found was the pot has broken plastic stub holding the wiper.
The carbon track has only on half of the track and vice versa on the other track, which mean when balance was turn, one side will have resistance of the carbon track while the other will be short to ground. I try them first with using fixed resistor and just split the resistance for the center tap and I lost some gain compare to the original pot. I did not know it was design like that to start with but since the balance pot was fixed it work just fine up too now.

In  your case may be cleaning it using contact clearer could fixed the crarkling noise.

The volume pot is also alps.

I hope the info could help you out with your Basic C2.

Cheers
rom

[anal.log]

 I tried cleaning the pot with Cramolin but it was still crackly and intermittent.
I ended up using split resistors eliminating the pot because like you I could not find a replacement.
I didn't have any problems with any lost gain compared to the original pot. Could it be that you used the center
lead of the pot as the wiper? The actual wiper to that particular pot one of the outside leads.

Steph

[Rom]

Hi Stephie,

Actually the wiper,if I recall correctly, was the center, but like I have mention above due to the construction of the track, it will appear that the whole resistance of the pot is concentrated on one half side of the track which will appear that the actual use of the center will be the same effect if you use the side pin.
I think with your implementation of using fixed resistor you got it right the first time and I have mine into split which causes the lost of gain.

Not really important right now where the actual pin is as long as yours working and mine too, I'm happy.

ciao
Rom