Cobra 135XLR Expo 100 Expander Kit "E"

[9fb177]

Hello,   I've been looking for the Expo 100 Expander Kit "E" for the Cobra 135xlr.

It seems that the supply is completely dried up.

Does anyone know the specs for the crystal in this kit, and if there is anywhere that could cut this crystal today?

Thanks for any assistance. 73

[tecnicoloco2000]

Mar 19, 2020 11:03:42 GMT -5 9fb177 said:

Hello,   I've been looking for the Expo 100 Expander Kit "E" for the Cobra 135xlr.

It seems that the supply is completely dried up.

Does anyone know the specs for the crystal in this kit, and if there is anywhere that could cut this crystal today?

Thanks for any assistance. 73

I do

16.836 for low frequency

17.276 for hi frequency

17.056 normal channels

TC-5080P PLL

For Cobra 132XLR,135XLR and 32XLR



Hope this helps
Tecnicoloco

[9fb177]

Thank you for the help Technicoloco!

Can you advise on what load capacitance to order the crystals with??

Thanks again, 73,
Kevin

[cbrown]

This site claims to have them, price listed is $25.88. Not sure if its up to date.

www.bills2way.com/expo.html

[9fb177]

May 6, 2020 13:09:41 GMT -5 cbrown said:

This site claims to have them, price listed is $25.88. Not sure if its up to date.

www.bills2way.com/expo.html

I sent them an email some time ago.  No reply.

I guess I'm going to take a chance and guess at the capacitance load for the crystal being around 20pf, and roll the dice.

Thanks for the info!

73

[cbrown]

No problem, I just wish I has some E kits left to help you out.

[tecnicoloco2000]

I do not know the value but up to 20pF is good and that is what they use in all these kits



www.kitsandparts.com/caps_trim.php