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Re: ZX Spectrum load tape from android phone - Low Volume

Posted: Thu Oct 05, 2023 6:01 pm
by redgatemodels
Bought one of these

https://www.ebay.co.uk/itm/274381433915

Plugged into my Xperia 10 II, works a charm with ZX Tape Player etc, plug the ear lead from the speccy into the headphone jack on the splitter, 3/4 volume on the phone, loads first time 😁

Re: ZX Spectrum load tape from android phone - Low Volume

Posted: Tue Nov 14, 2023 6:56 pm
by Pygmalion
I have tried everything (settings, apps, but without audio amplifier) on three different Samsung smartphones and it's not loud enough. I think Samsung is too concerned about its customers...

Re: ZX Spectrum load tape from android phone - Low Volume

Posted: Tue Nov 14, 2023 8:52 pm
by redgatemodels
Pygmalion wrote: Tue Nov 14, 2023 6:56 pm I have tried everything (settings, apps, but without audio amplifier) on three different Samsung smartphones and it's not loud enough. I think Samsung is too concerned about its customers...
Might be the case, I have a nifty little tape player with a usb output for transferring tapes to mp3 but the headphone jack is too quiet for tape loading too. Seems to be pot luck on modern devices, some are loud enough, others not

Re: ZX Spectrum load tape from android phone - Low Volume

Posted: Fri Jan 19, 2024 6:53 pm
by Pygmalion
Hello, I solved the problem by buying three things (total cost cca. $5):

- LM386 audio amplifier: https://www.aliexpress.com/item/10000035036572.html
- splitter power cable: https://www.aliexpress.com/item/1005005468817233.html
- reverse polarity power cable: https://www.aliexpress.com/item/1005003474146061.html

Then I connected everything like this:
zx_spectrum.png
IMG_0008.JPG
As you can see, I also designed and printed a small neat box for the audio amplifier:
audio_ampl.zip
(18.76 KiB) Downloaded 54 times