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Ramon F. Herrera
Guest
Mon Nov 28, 2011 2:03 am
I was looking at the schematics of the first transistor radio, the
Regency TR-1, and noticed that it uses a 22.5v. battery.
http://people.msoe.edu/~reyer/regency/schematic.jpg
Later models use a more normal battery such as 9v.
-Ramon
Phil Allison
Guest
Mon Nov 28, 2011 2:03 am
"Ramon F. Herrera"
Quote:
** Ever heard of Google ??
http://people.msoe.edu/~reyer/regency/battery2.jpg
.... Phil
Guest
Mon Nov 28, 2011 2:03 am
On Sun, 27 Nov 2011 16:36:12 -0800 (PST), "Ramon F. Herrera"
<ramon_at_conexus.net> wrote:
Quote:
On Nov 27, 6:03 pm, "Ramon F. Herrera" <ra...@conexus.net> wrote:
I was looking at the schematics of the first transistor radio, the
Regency TR-1, and noticed that it uses a 22.5v. battery.
http://people.msoe.edu/~reyer/regency/schematic.jpg
Later models use a more normal battery such as 9v.
-Ramon
They have one for sale on eBay for $800. I wonder whether it comes
with battery, and most important whether it works...
-Ramon
ps: So, how common are 22.5v batteries these days? Never seen one
above 9v.
amazon.com stocks at least one:
http://www.amazon.com/Energizer-Eveready-01362-EVR505-Carbon-Battery/dp/B000BQU72O/ref=sr_1_1?ie=UTF8&qid=1322441537&sr=8-1
Phil Allison
Guest
Mon Nov 28, 2011 2:06 am
<news_at_jecarter.us>
Quote:
** Wrong size and shape.
The Eveready 412 ( 22.5 V) is similar in size and shape to a regular 9V
radio battery.
Used in some analogue multimeters.
..... Phil
Ramon F. Herrera
Guest
Mon Nov 28, 2011 2:36 am
On Nov 27, 6:03 pm, "Ramon F. Herrera" <ra...@conexus.net> wrote:
Quote:
They have one for sale on eBay for $800. I wonder whether it comes
with battery, and most important whether it works...
-Ramon
ps: So, how common are 22.5v batteries these days? Never seen one
above 9v.
IanM
Guest
Mon Nov 28, 2011 5:24 am
news_at_jecarter.us wrote:
Quote:
15V and 22.5V batteries used to be commonly used in professional
quality analog multimeters for the higher ohms ranges. That would be
right up till the late 80's. Specialist suppliers tend to still stock
them - at a price.
--
Ian Malcolm. London, ENGLAND. (NEWSGROUP REPLY PREFERRED)
ianm[at]the[dash]malcolms[dot]freeserve[dot]co[dot]uk
[at]=@, [dash]=- & [dot]=. *Warning* HTML & >32K emails --> NUL:
Michael A. Terrell
Guest
Mon Nov 28, 2011 5:53 am
"Ramon F. Herrera" wrote:
Quote:
On Nov 27, 6:03 pm, "Ramon F. Herrera" <ra...@conexus.net> wrote:
I was looking at the schematics of the first transistor radio, the
Regency TR-1, and noticed that it uses a 22.5v. battery.
http://people.msoe.edu/~reyer/regency/schematic.jpg
Later models use a more normal battery such as 9v.
-Ramon
They have one for sale on eBay for $800. I wonder whether it comes
with battery, and most important whether it works...
It is a collectable radio. It was Regency's first solid state radio
and it's likely to have one or more bad transistors, plus bad
electrolytics. Leave it for someone who collects & restores them, if
you don't want to spend another $100 or more in parts & labor to make
sure it works properly.
--
You can't have a sense of humor, if you have no sense.
Guest
Mon Nov 28, 2011 5:06 pm
On Sun, 27 Nov 2011 16:36:12 -0800 (PST), "Ramon F. Herrera"
<ramon_at_conexus.net> wrote:
Quote:
ps: So, how common are 22.5v batteries these days? Never seen one
above 9v.
Scarcer than hen's teeth I'd imagine.
Roll your own if you happen to need it - or build a voltage booster.
22.5V was the lower end of "B" batteries for portable radios using
toobs. Regency just used what was already available - being
transistor sets, they didn't really need (or want) that high a voltage
or the expense of a HV multi cell battery. It was economical and
logical to use what was already in production.
I remember playing with 45 Volt and 90 Volt "B" batteries, and even
one weirdo called 54.5 volts - and that doesn't compute to an even
multiple of 1.5.
fungus
Guest
Mon Nov 28, 2011 7:01 pm
On Nov 28, 5:06 pm, default wrote:
Quote:
On Sun, 27 Nov 2011 16:36:12 -0800 (PST), "Ramon F. Herrera"
ra...@conexus.net> wrote:
ps: So, how common are 22.5v batteries these days? Never seen one
above 9v.
Scarcer than hen's teeth I'd imagine.
Roll your own if you happen to need it - or build a voltage booster.
If you need battery power then go on eBay and search for "dc boost".
There's plenty of adjustable ones that can output 22.5 volts from
a more standard battery voltage.
Ramon F. Herrera
Guest
Tue Nov 29, 2011 12:29 am
On Nov 27, 6:36 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
Quote:
"Ramon F. Herrera"
I was looking at the schematics of the first transistor radio, the
Regency TR-1, and noticed that it uses a 22.5v. battery.
http://people.msoe.edu/~reyer/regency/schematic.jpg
Later models use a more normal battery such as 9v.
** Ever heard of Google ??
Do you know the name of the first software to go out and collect info
on the web, for a search engine?
In any event, this is what happened: I did a Google search of a "22
volt battery" and found nothing usable. I then realized that 22 is not
divisible by 1.5 but still wanted to hear the comments of you kind
folks.
-Ramon
Jamie
Guest
Tue Nov 29, 2011 12:34 am
Ramon F. Herrera wrote:
Quote:
On Nov 27, 6:36 pm, "Phil Allison" <phi...@tpg.com.au> wrote:
"Ramon F. Herrera"
I was looking at the schematics of the first transistor radio, the
Regency TR-1, and noticed that it uses a 22.5v. battery.
http://people.msoe.edu/~reyer/regency/schematic.jpg
Later models use a more normal battery such as 9v.
** Ever heard of Google ??
Do you know the name of the first software to go out and collect info
on the web, for a search engine?
In any event, this is what happened: I did a Google search of a "22
volt battery" and found nothing usable. I then realized that 22 is not
divisible by 1.5 but still wanted to hear the comments of you kind
folks.
-Ramon
Don't listen to Phil, he has issues.. Lots of them.
He's in kangaroo land. I think he has been hanging around
them just a little to long!
Ever hear the song "Lay me kangaroo down sport"
Jamie
Rich Grise
Guest
Tue Nov 29, 2011 1:10 am
Jamie wrote:
Quote:
Ever hear the song "Lay me kangaroo down sport"
No, but I've heard "Tie me kangaroo down sport."
Hope This Helps!
Rich
Rich Grise
Guest
Tue Nov 29, 2011 1:11 am
Ramon F. Herrera wrote:
Quote:
In any event, this is what happened: I did a Google search of a "22
volt battery" and found nothing usable. I then realized that 22 is not
divisible by 1.5 but still wanted to hear the comments of you kind
folks.
And it never occurred to you to search for '22.5 volt battery?'
I get "about 81,900" hits on it.
Good Luck!
Rich
Jamie
Guest
Tue Nov 29, 2011 1:29 am
Rich Grise wrote:
Quote:
Jamie wrote:
Ever hear the song "Lay me kangaroo down sport"
No, but I've heard "Tie me kangaroo down sport."
Hope This Helps!
Rich
You miss the point, you know barn yard animals ?
Something Phil should be familiar with :)
Jamie
Phil Allison
Guest
Tue Nov 29, 2011 11:39 am
"Ramon F. Herrera"
"Phil Allison"
Quote:
In any event, this is what happened: I did a Google search of a "22
volt battery" and found nothing usable.
** The link I posted is from the SAME web site that you cited.
I then realized that 22 is not divisible by 1.5 but still wanted to hear the
comments of you kind
folks.
** You are a jerk.
.... Phil
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