CoolCat
Well-known member
APHEX 207 dual preamp 19" rack.....great unit...but.....the weird buttons were really "sticking" and not popping back out.
The sticking buttons appear to be spring loaded. They were unable to easily switch from ON to OFF.
Theres 10 of them! and only a few worked ok.
Reviewing deeper, the brand is a WB Electronic switch.There wasnt much to see in the switch, its encapsulated. A push button with a Spring. the springs were not able to be changed out, replacing the switches seemed a lot of soldering!! for 10qty switches each with almost 10 pines each!
Being a mechanical switch I thought getting some fine oil on the plastic moving switch could help. But light amount of oil didnt work.
I then thought to really swab it up with oil, using a tiny fine model airplane painter brush and fine oil, I soaked the oil , brushed on the oil to the white plastic switch, focusing on the slides and the tiny hole on the top and cycling the switches many times and re-applying oil has them working like brand new! So did all 10qty were re-lubed and unit put together.
These type switches are also found on some Fender Amps per pictures. On/OFF, Double Throw /Single pole etc.. so this procedure to oil switches might help someone?
Just wanted to log it in the REPAIR logbook for gearheads!
The sticking buttons appear to be spring loaded. They were unable to easily switch from ON to OFF.
Theres 10 of them! and only a few worked ok.
Reviewing deeper, the brand is a WB Electronic switch.There wasnt much to see in the switch, its encapsulated. A push button with a Spring. the springs were not able to be changed out, replacing the switches seemed a lot of soldering!! for 10qty switches each with almost 10 pines each!
Being a mechanical switch I thought getting some fine oil on the plastic moving switch could help. But light amount of oil didnt work.
I then thought to really swab it up with oil, using a tiny fine model airplane painter brush and fine oil, I soaked the oil , brushed on the oil to the white plastic switch, focusing on the slides and the tiny hole on the top and cycling the switches many times and re-applying oil has them working like brand new! So did all 10qty were re-lubed and unit put together.
These type switches are also found on some Fender Amps per pictures. On/OFF, Double Throw /Single pole etc.. so this procedure to oil switches might help someone?
Just wanted to log it in the REPAIR logbook for gearheads!
