Daniel wrote on 19/6/24 5:32 pm:
> Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> writes:
>
>> On 2023-03-01 09:06, Daniel wrote:
>>> Hi folks I'm really new with electronics. Doing a massive project
>>> for a retro computer system and, as a prong of this project I'm
>>> attempting to locate a modern equivalent of the board components.
>>> Enter the tantalum capacitor. Having gone to digikey, mouser, and
>>> newark none of them seem to have the item I'm looking for in
>>> stock. What are the rules about alternate values? The tantalum
>>> cap I'm looking for, according to the service manual, has the
>>> following rating: 1uf,10v, +-20%. The DIP style cap that the
>>> board uses isn't in stock anywhere so would I be able to
>>> substitute this cap for 1uf, 20v, +-20%? Thanks, Daniel
>>>
>>
>> Going up in voltage rating is fine. There might possibly be an
>> issue if the effective series resistance (ESR) is higher, but all
>> solid tants have highish ESR anyway, so it's unlikely to make a
>> noticeable difference.
>>
>> (Polymer tants are a different animal.)
>>
>> Cheers
>>
>> Phil Hobbs
>
> I know it's really late in the game but I wanted to thank everyone
> for their patient answers.

Hey, at least you have (now) gotten back to us! ;-P

> Alot has been going on in real life and had to take a long long
> break from the newsgroups due to that, and as well as forgetting to
> check in.

Isn't it a bummer when Life gets in the way??

> I'm catching up on hundreds of messages on newsgroups and on IRC and
> in the BBS scene.

We'll still be here .... well, some of us. ;-P

> I did order my components though, but haven't made much traction on
> the project I posted about.
>
> Someday.
>
"Someday" .... Isn't that a line from a song from way back when??
--
Daniel

Does anyone sell an add-on AVC or AGC, automatic volume control that can
be used with an existing one-piece radio?

I bought an internet radio and in some of the stations, the commercials
are so loud they wake me up if I've fallen asleep, or near sleep, and if
I turn down the volume, I can't hear the program. I listen to talk
radio and in another channel, the host is loud enough but everyone else
is much quieter, and sometimes the host gets closer to the microphone
and it's too loud again.

I'd like to cut the wire to the speakers, which are built into the
radio's cabinet, and insert a device or circuit that will act as an AVC.
Any suggestions?

I presume that if I bought a different internet radio I'd have the same
problem, or is it possible the AVC in this one is broken?

P.S. googling found this, Add-on: AGC and Speech Enhancement
https://www.totalrecorder.com/AddOnAGC.htm , which sounds perfect, but
it's software, and I need hardware.