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1st guitar amp: grandma's radio

Discussion in 'Shock Brother's DIY Amps' started by Hari Seldon, Mar 9, 2020.

  1. Hari Seldon

    Hari Seldon Tele-Meister

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    Just discovered this place. Reminded me of my 1st amp:

    [​IMG]

    I was 16, had no clue or money, but a cheap japanese guitar and a soldering iron.
    I searched until I found a ca. +9V contact joint and attached a 1 transistor preamp to it (free floating). Plugged my guitar in, recieved no electrical shock (and therefore survived) and had lots of fun.
    The radio survived the torture, too, don't know what has become of it.
     
    tah1962, Bluey, Fretting out and 5 others like this.
  2. drew1d

    drew1d Tele-Meister Silver Supporter

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    Dude, that thing is Boss. It looks like a mini understated jukebox.
     
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  3. drew1d

    drew1d Tele-Meister Silver Supporter

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    Or like the Radio out of a 50's Caddilac
     
  4. muscmp

    muscmp Tele-Afflicted

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    i have a couple grundig radios. great sounds as a radio. too bad you don't have it.

    play music!
     
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  5. BobbyZ

    BobbyZ Doctor of Teleocity

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    I've got a Grundig like that didn't work when I got it. As these things go I took it apart, the string or belt was broken that moves the indicator, then ended up moving. Hopefully I packed all the bits!
     
  6. Guitarteach

    Guitarteach Doctor of Teleocity

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    I had a similar styled 1/4” reel to reel deck that belonged to my father. I would plug into the mic socket and it would work as a delay too if i ran the playback to another amp.

    I had a HUGE amount of fun with it.

    If i can find it among the junk at my parents, the tapes will be full of my riffing from when I was 12.
     
    Hari Seldon likes this.
  7. dougsta

    dougsta Tele-Meister

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    These make fun projects, you can buy old radios on ebay for 20-50 euros, about the same cost as an HT power transformer.
    If you are lucky, all the internals work ok, the power lead may have been cut as they are often sold as "display/prop only".

    Inside there could be an EL84 with matching output transformer, maybe an ECC8x, often see an ECC85, used for RF service, it's very similar to an ECC82 but with the filaments on pins 4/5.
    There are other triodes lurkng in there you could use, the pentodes are useful too, I've used them for driving transformerless spring reverbs. Use the magic-eye for a audio level meter.

    The cabinet, chassis and speaker nice too.


    Doug
     
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  8. beagle

    beagle Friend of Leo's

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    I blew up the radio and Dad's radiogram (twice)...
     
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  9. dougsta

    dougsta Tele-Meister

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    A radiogram would cost about 3 months wages back then! Bet you were popular,
     
  10. Fretting out

    Fretting out Poster Extraordinaire

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    I’m sure I’m probably younger but my first “amp” when I started playing around 12 was my fathers old 80’s kenwood power amp on top of his late 70’s peavey p.a speaker

    Before buying an amp he wanted to make sure I’d stick with it
     
  11. dougsta

    dougsta Tele-Meister

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    I picked up a nice 1962 stereo radiogram for a quid on ebay, drove 30 miles to pick it up.

    It had a stereo PP amp and some nice 10" eliptical speakers.
    There was a bonus inside, an old grundig reel-reel. It was seized up mechanically tho, valves were 2x EL95 1xEF86 1xECC81. PT and an OT.
     
  12. dougsta

    dougsta Tele-Meister

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    My middle son is off to university this year to study maths/physics.
    A summer project is to build an electric guitar and valve amp from scratch, he learned to play on a crappy acoustic we picked up at a pawn shop in Adelaide, Australia when we did a 3 month trip in an RV.
     
  13. bettyseldest

    bettyseldest Friend of Leo's

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    Shortly after I bought my first guitar my dad bought a Yamaha electronic organ. I was able to patch my guitar into it. It sounded no better than my crappy 10w 1x8" practice amp, until I turned on the rotating speaker!
     
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