[Boatanchors] Need 4000/4(or 8) ohm audio transformer to use with a BC-324N

[Jim Wiley]

You can use a PA system speaker matching transformer to solve this 
problem.  Transformers are available for so called "70 volt" and "25 
volt" PA systems that have several taps designed to match "watts".  What 
these really are is multi-tapped transformers that rely on a certain 
amount of mismatch to determine how loud a particular room speaker is 
when connected to the system.  The impedance range of these transformers 
typically runs from about 500 to more than 16,000 ohms (primary) to a 
8-ohm secondary.  These transformers are very cheap when new, and can 
often be obtained for free from speakers in a building being torn down.  
These transformers make excellent matching transformers for all sorts of 
boatanchor and glow-bug projects.  Try to find a unit that has all its 
leads intact, and not clipped as is often the case.  Get a unit rated 
at  4 to 16 watts, it will be exactly what you are looking for.  
Remember, a rose by any other name .........


- Jim, KL7CC



John Flood wrote:
> Greetings all,
>
> I rescued a pretty ugly BC-324N and have it running now.  Lucky most of the ugly was just dirt and the front panel cleaned up quite well!  but the case will need a repainting.  If I recall correctly, the speaker output is 4KOhm and was wondering if any one had a transformer hanging around so I could use 4-8 ohm speakers with it.  I could offer cash or even better, tested vacuum tubes in exchange.  Would be willing to offer 2-3 times worth of tubes in exchange but cash OK as well.  Also, if I am wrong with the output impeadance please let me know.  
>
> I had my 6 year old Son listening to it on a pair of headphones and we found a Chineese broadcast and he got all excited and listened to it while he ate breakfast before school!  Looks like there is hope for #2 son and radio!  He was so excited It prevented me from harm by the wife for leaving it on the kitchen table the night(well morning) before when I crawled up to bed.
>
> John Flood  KB1FQG
> 978-979-2807
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