Post A2ApvNWK8lxLFVNNVA by kr4dio@mastodon.radio
 (DIR) More posts by kr4dio@mastodon.radio
 (DIR) Post #A1sg7PFqQ1JvNJMV4i by Ricardus@mastodon.sdf.org
       2020-12-05T05:21:11Z
       
       1 likes, 0 repeats
       
       @kr4dio You out there? I need your help with a small PCB that will actually see the light of day this time, and possibly make a little money.This 50 year old Heathkit amp I am about to build (I've had it NOS in the box for a decade or more) has these old ceramic potted tone modules that they used in several recievers' bass/treble controls, and I think cloning it on a PCB would be cool, and I think people would buy them as the originals are getting harder to find. See attached.
       
 (DIR) Post #A2Anklh3j1Up7wD6WG by kr4dio@mastodon.radio
       2020-12-13T23:11:28Z
       
       0 likes, 0 repeats
       
       @Ricardus sorry for not responding— I guess I turned off notifications on this app or something. Anyway, this looks really simple. I can sketch out a pcb in 15 minutes later this evening
       
 (DIR) Post #A2AoLS1Dq2nOoz8Jeq by Ricardus@mastodon.sdf.org
       2020-12-13T23:18:12Z
       
       0 likes, 0 repeats
       
       @kr4dio I was wondering what happened to you!  🙂 I was thinking you could do this in 15 mins to be honest. All resistors are 1/4 watt and the caps have 5mm lead spacing.Like we were talking about for the other board, I would like this to be through hole plated with pads on both sides, mostly so the pigtails have a good solder joint since these will be hanging on the pigtail. Gold plated traces? What color solder mask options are there?
       
 (DIR) Post #A2AoP8JX2euornS9qq by Ricardus@mastodon.sdf.org
       2020-12-13T23:18:52Z
       
       0 likes, 0 repeats
       
       @kr4dio Oh yeah... my plan is to use these in my build of my NOS AA32, and put some up on Ebay for other heathkit users. If I sell any I'll give you half.
       
 (DIR) Post #A2AokvBQXgAmVt3GHg by Ricardus@mastodon.sdf.org
       2020-12-13T23:22:47Z
       
       0 likes, 0 repeats
       
       @kr4dio Oh yes, there's an error in that schematic I sent you. C26 is not .002, it's .022 as per this schemo.
       
 (DIR) Post #A2ApgdnlKCp3OuVOmu by Ricardus@mastodon.sdf.org
       2020-12-13T23:33:13Z
       
       0 likes, 0 repeats
       
       @kr4dio The parts I spec'd for this:HEATHKIT 84-13 TONE MODULEMouser #603-MFR-25FTE52-47K660-MF1/4CC1002F660-MF1/4CCT52R1003F505-FKP2D011501DHC00505-FKP20.022/100/2505-FKP2220/100/2.5505-FKP22200/100/2T
       
 (DIR) Post #A2ApvNWK8lxLFVNNVA by kr4dio@mastodon.radio
       2020-12-13T23:35:48Z
       
       0 likes, 0 repeats
       
       @Ricardus clear soldermask on a black substrate is trendy right now
       
 (DIR) Post #A2ApzBlNnMEFwYEjjs by Ricardus@mastodon.sdf.org
       2020-12-13T23:36:35Z
       
       0 likes, 0 repeats
       
       @kr4dio Oooh. That's sexy.