finally an electrostatic transportable

[spritzer]

A SRM212 with one of those USB to barrell jack adapters and run it off a normal USB power bank.  4W should be just fine of a 2A output.   

[philodox]

Who is making these???

[kevin gilmore]

has to be one of the ones that can be set to 12v like this

Amazon.com: FARSENSE USB C to DC Adapter,Barrel PD Trigger Cable(3.3ft) with 10 Connector Tips,USB to DC Power Cable can Switch Voltage by Pressing The Key,Support LED Display Voltage : Electronics

[philodox]

Love it. How are you doing sir, still teaching? Any chance you'd take a glance at my McAllister mess/amp? I'd love to give it a refit. 

[psyduck]

The thick film resistors are still bit of a problem cause of drift. Even with the dn2540, turning the trimmer a little too high or low will still cause it to drift.

[Michelag]

9 minutes ago, psyduck said:

The thick film resistors are still bit of a problem cause of drift. Even with the dn2540, turning the trimmer a little too high or low will still cause it to drift.

then let's find some other kind resistors 😁

[psyduck]

Just now, Michelag said:

then let's find some other kind resistors 😁

I think the metal film resistors will work, they're used on the cfaelectrostat board in google drive. It's quite a bit bigger and you need two of them for one channel.

[Michelag]

52 minutes ago, psyduck said:

I think the metal film resistors will work, they're used on the cfaelectrostat board in google drive. It's quite a bit bigger and you need two of them for one channel.

guess i'm trying a mix MELF/thin film