Dating vintage jensen speakers

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I have a 1965 Deluxe Reverb and am trying to figure out if it has a Utah or some other kind of speaker. I also have one of the newer Fender Pro Reverb amps with an effects loop and a silverface Twin Reverb with a volume control. Steve Goldner San Diego Hi Steve, Thanks for your questions. Figuring out which manufacturer’s speaker is in your amp shouldn’t pose a problem unless it’s some aftermarket mystery speaker with no markings.

I was thinking of trying a Celestion Gold 50, but I usually only play in my bedroom, and I don't want to increase the amp’s volume. Both amps produce very loud hum whether or not a guitar is plugged in. Or is there some other possible cause you can point me to? Most factory speakers in Fender amplifiers have what is known as an EIA code that specifies their manufacturer.

Altec-Lansing -# 391; CTS - #137; Electro-Voice -#649; Eminence -#67; Jensen - #220; JBL #73; Oxford - #465 .

I think many of us know about the jensen codes, but there is much less out there on the oxford codes. This data base is for use for dating and verifying your amp...

He co-founded and was originally the principal designer for Budda Amplification, though he launched EAST Amplification ( in 2010.

You can catch his podcasts at or email him at [email protected]

2 03 - Dating Vintage Guitars and Amps by Source-Date Code.. it is one of the Oxfords that doesn't carry much weight in the vintage world, anyway.

There are quite a few potential causes of this symptom, and it’s impossible to diagnose your amps without having them on the bench.

I’ll list a few possible causes, but be aware that the cause of the hum in one amp isn’t necessarily the cause in another one. I hope these tips help get your Fenders into phenomenal form!

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