[GreenKeys] O/T - 24v to 48v POTS Telco converter for added ring?

[Paul Wills (CKT&T)]

You might want to check the bias spring on the ringer.  Usually, I can 
get a 500 set to work with a "modern" type device by reducing the 
tension on the spring.  The spring on the 500 set normally rests on the 
"high tension" slot and can simply be moved to the "less tension" slot.  
(If you look at the ringer, it's pretty obvious.)

I just checked my AE 80 and it has a brass arm that rests against the 
tension spring.  Simply bending the arm should decrease the tension of 
the spring.  The only catch is to not reduce it so low that you start to 
get "bell tap" when you dial the phone.  If the call blocker is 
"collecting and regenerating" the outgoing call it might, simply, not 
support pulse dialing.  Then a tone to pulse converter would be your 
only option.

PDW

On 7/30/2021 3:37 AM, E. wrote:
> Hey all you Telco guys - need some help!  So I’ve just bought a call blocker for my POTS.  Normally at my deck, I have an Automatic Electric model 80 (rotary) here and it has always worked great on my phone line.  Hooked it up today to the phone blocker and welp, the bell won’t ring and it won’t really dial out.  Measured voltage on the phone side of the call blocker and it measures 24v, unlike the 48v going in :/ .  Question… would the unit in the link below be the cure-all to this low voltage blues?:
>
> https://vikingelectronics.com/wp-content/uploads/documents/product_manual/TBB-1B.pdf
>
> Really want to run the phone through the call blocker as opposed to going around it, since there’s added benefits(tm).
>
> Thanks to anyone who might know and be able to help out on this :) .
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