414 EB - capacitor question

[mrclunk]

Servicing our EB's and they have some pf range caps that look, at first glance, like glass diodes.
Anyone know what type they are?
Ceramics?

One's between the capsule and Fet gate so if they are ceramics i might try a poly instead.

 

[shabtek]

yes cog. from thread AKG C414EB P48 repair and restoration little help needed!! :

C1, 2 & 3 are NPO/COG ceramics; the BEST capacitors for these positions.  C13 & 14 should be changed to NPO/COG ceramics if you can get ones of the correct value & voltage to fit.  Otherwise leave alone.

Do what you want with the other capacitors & resistors but don't damage the PCB.

Clean all your soldering scrupulously with 100% ethanol and air dry when you finish.  No flux residues.

Get the diaphragm tension on the one you replaced checked so it matches the other one.

 

[mrclunk]

Excellent, thank you.
I shall leave alone apart from cleaning.