YIG Advantek info needed

[Pierre-François \(f5bqp_pfm\)]

Dear Sir,

I'm searching the specs/datasheets concerning the following YIG oscillators
from Avantek:

Model YO84-1679
Frequency 2.0 ~ 4.35 Ghz

Model YO87-4108
Frequency 2.51 ~ 4.50 Ghz

Could you help?

Many thanks in advance for your reply.

Best regards
pf, F5BQP