Anyone out there have the transformer or charger for an ADI AT 201 radio?
I have a couple of old ADI radios that I can't charge becasue the transformers have burned out.
Matthew
ADI Charger
Moderator: CHGPA BOD
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Danny Brotto
- Posts: 709
- Joined: Mon Feb 14, 2005 9:29 pm
Re: ADI Charger
It's likely that your wall mount transformer chargers (aka "adapters) "burnt out" because the batteries in the radios are faulty (low voltage due to cell shorts.)
Replace your batteries before using another xformer lest the new one suffer the same fate as the old ones.
Danny Brotto
Replace your batteries before using another xformer lest the new one suffer the same fate as the old ones.
Danny Brotto
Re: ADI Charger
Like I said, electricity is PFM (pure ******* magic)! - Hugh
Re: ADI Charger
Duh.
I replaced the batteries. It's not the batteries. The transformers are burnt out. Hence, as I originally said, I need a new transformer or a charging station if anyone has one available.
Matthew
I replaced the batteries. It's not the batteries. The transformers are burnt out. Hence, as I originally said, I need a new transformer or a charging station if anyone has one available.
Matthew
Re: ADI Charger
Matthew,
Do you have the voltage and pin configuration???????
Maybe I might be able to find one.....
'Til then, Mike
Do you have the voltage and pin configuration???????
Maybe I might be able to find one.....
'Til then, Mike
Mike Lee
How 'Bout That
How 'Bout That
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Danny Brotto
- Posts: 709
- Joined: Mon Feb 14, 2005 9:29 pm
Re: ADI Charger
Mathew
You didn’t say that you replaced the batteries; you said that you needed new chargers since your old ones burnt up. I recommended replacing your batteries to keep you from burning up your new chargers… just trying to help you out… duh.
Not to belabor a point but I reiterate about the batteries being a likely cause of transformer charger “burn up” in the event it might help someone else with such a problem in the future.
Transformers are often used for low-current, continuous charging of NiCd and NiMH batteries. It is likely a type that is used in Mathew’s ADI radio charger.
These types of chargers are tuned to operate in a narrow range of constant power. Power = voltage time current. A typical end-of-life failure for NiCd or NiMh is an internal cell short. This reduces the voltage. (The radio may continue to work okay even with a low voltage/shorted cell although typically the transmit capability is reduced.) The current from the transformer rises to maintain that range of power output. Power lost as heat increases (I^2R) and the transformer beings to run hot. A UL-rated transformer incorporates a thermal fuse in series with the primary winding specifically to open the transformer if it gets too hot; ergo “burning up” the charger.
I’m just saying that if you find your transformer charger has failed, the root cause may be the battery pack. If you simply replace the charger it may suffer the same fate as the previous one. It would be wise to check and/or replace the battery pack at the same time.
Danny Brotto
You didn’t say that you replaced the batteries; you said that you needed new chargers since your old ones burnt up. I recommended replacing your batteries to keep you from burning up your new chargers… just trying to help you out… duh.
Not to belabor a point but I reiterate about the batteries being a likely cause of transformer charger “burn up” in the event it might help someone else with such a problem in the future.
Transformers are often used for low-current, continuous charging of NiCd and NiMH batteries. It is likely a type that is used in Mathew’s ADI radio charger.
These types of chargers are tuned to operate in a narrow range of constant power. Power = voltage time current. A typical end-of-life failure for NiCd or NiMh is an internal cell short. This reduces the voltage. (The radio may continue to work okay even with a low voltage/shorted cell although typically the transmit capability is reduced.) The current from the transformer rises to maintain that range of power output. Power lost as heat increases (I^2R) and the transformer beings to run hot. A UL-rated transformer incorporates a thermal fuse in series with the primary winding specifically to open the transformer if it gets too hot; ergo “burning up” the charger.
I’m just saying that if you find your transformer charger has failed, the root cause may be the battery pack. If you simply replace the charger it may suffer the same fate as the previous one. It would be wise to check and/or replace the battery pack at the same time.
Danny Brotto