Sequential Timers with PWM Motor Speed Control

[Staigen1]

Hi again

Thats the battery! ;D

//Staigen

 

[Staigen1]

Oh no, now i'm back again

The battery was used for filament of tubes like 1H5, 1N5, 1C5 etc etc! Nice time !

//Staigen

 

[audioguru2]

Big, heavy batteries to light toobz?
The 1st portable radio I got in about 1957 had real transistors. It was a fairly small AM radio with a tapped 9V battery and a nice leather case. Later I used 2 ordinary 9V batteries in series and it was louder than anyone else had, and didn't smoke or blow up.
I had to fight with my twin sister over it. I am 1/2 hour older than her. ;D

 

[Staigen1]

Hehe

Big, heavy batteries to light toobz?

Yepp, and a bigger one for the anodes and screens, 108 Volts with taps at 90 and 99 Volts, if i remember right! You used the 90 tap when the battery was new and the others when the battery started to get exhausted!

The 1st portable radio I got in about 1957 had real transistors.

In 1957 transistor radios was very expensive here in Sweden! I dont remember prices.

It was a fairly small AM radio with a tapped 9V battery

Tapped battery? Was it running on several voltages?

Later I used 2 ordinary 9V batteries in series

Did you run a 9Volt radio on 18 Volts? Without smoking the output stage? Hehe ;D! No wonder it was loud ;D ;D!

I had to fight with my twin sister over it. I am 1/2 hour older than her.

How old are you? I was born in the beginning of 1946, so i'm 60 soon!

//Staigen

 

[audioguru2]

Hi Staigen,
Our nice uncle gave my sister and me for our birthday almost the 1st transistor radio ever made. A boss of mine at work gave me almost the 1st scientific calculator ever made, but it was very old when he gave it to me. It had a blue florescent display and was very slow. It took minutes to calculate some logs.
In university my calculator with its LED display had the longest battery life than anyone else had. I wired an electrolytic cap across the battery. Multiplexed LEDs operate with a very high peak current that is supplied longer by the cap when the battery become weak.

I'm ahead of you. I turned 60 a couple of weeks ago and get my 1st government pension cheque this month. Happy Birthday to you soon. ;D

 

[Staigen1]

And now i'm here again

It was a fairly small AM radio with a tapped 9V battery
Tapped battery? Was it running on several voltages?

??

I'm ahead of you. I turned 60 a couple of weeks ago and get my 1st government pension cheque this month. Happy Birthday to you soon.

Thank you . Then we are about the same age ;D!

//Staigen

 

[audioguru2]

Yeah, it was 4.5V plus another 4.5V. I never saw its schematic because it would have looked like snakes and ladders to me without any electronics knowledge at the time.


He, he. You are just a young whipper-snapper. I am at least 4 months older than you. ;D ;D

 

[Staigen1]

Hehe

He, he. You are just a young whipper-snapper. I am at least 4 months older than you.

Hehe, but i'm fatter than you ;D ;D

//Staigen

 

[Staigen1]

Btw

I belive the tap was for the speakers common supply. No output tranny, cheaper, simplier and better! I can get you a simple schematic, if you want!

//Staigen

 

[ante1]

Wow, 120 years of experience in the same thread!!!  Respect this!!  ;D ;D

 

[audioguru2]

I think it is better to have a mixture of people's ages in a discussion.
Since Staigen and I are the same age then maybe we both learned the same mistakes that were corrected later. ;D

 

[ante1]

Someone said: a mix of brains is better than a mixed up brain. Whatever that means? ???  ;D

I like you both very much, you make me feel young! ;D ;D

 

[audioguru2]

Either my Internet Explorer is mixed-up or this site is.
I had to reload this page about 20 times to make it complete loading. >

 

[Staigen1]

No problems here, it must be internet or your ISP or at your computer! ;D ;D

//Staigen