Re: [funwithtransistors] Potential New Thread


Nov 11, 2014

 


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#1883 Nov 11, 2014

Greetings Earthlings�� ���� �� Just finished downloading a whole collection ofPopular Electronics. ��And had an idea. ��If you arelike me, most of these will now sit on a dvd andnot be used as they probably should be used : )

�� ��There are 338 issues in all, so if we took oneissue per week and talked of it.s contents, ofcourse focusing on the transistorized projects,we.d have study and debate material to last us for5 to 10 years : ) ��Once in awhile there would be��a subject or a project that might need discussionfor more then one week. ��(3.5 Gig )

�� ��This is only counting one magazine, there areseveral others well worth going over. ��I hope todownload them in the next week or two.

�� ��Just thinking, and wondering what you mightbe thinking. �� : ) ��or wondering : )

CheersBillPS ��IF you are interested in these and many more:

americanradiohistory.com



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#1884 Nov 12, 2014

Excellent idea.



Regards.



Max. K 4 O DS.



Email: max@...



Transistor site www.funwithtransistors.net

Vacuum tube site: www.funwithtubes.net

Woodworking site

www.angelfire.com/electronic/funwithtubes/Woodworking/wwindex.html

Music site: www.maxsmusicplace.com



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----- Original Message -----

From: "William Wood ke9xq@... [funwithtransistors]"

funwithtransistors@yahoogroups.com>

To: funwithtransistors@yahoogroups.com>

Sent: Tuesday, November 11, 2014 5:10 PM

Subject: [funwithtransistors] Potential New Thread





Greetings Earthlings



Just finished downloading a whole collection of

Popular Electronics. And had an idea. If you are

like me, most of these will now sit on a dvd and

not be used as they probably should be used : )



There are 338 issues in all, so if we took one

issue per week and talked of it.s contents, of

course focusing on the transistorized projects,

we.d have study and debate material to last us for

5 to 10 years : ) Once in awhile there would be

a subject or a project that might need discussion

for more then one week. (3.5 Gig )



This is only counting one magazine, there are

several others well worth going over. I hope to

download them in the next week or two.



Just thinking, and wondering what you might

be thinking. : ) or wondering : )



Cheers

Bill

PS IF you are interested in these and many more:



americanradiohistory.com



----------------------------

#1885 Nov 12, 2014

hi Max ,

where did you find the Popular Electronics?

I am looking for one issue 1975 -1976 the described one satellite

antenna made of ply wood

73

KJ6UHN

Alex



On 11/11/2014 6:13 PM, 'Max Robinson' max@...

[funwithtransistors] wrote: > Excellent idea.

>

> Regards.

>

> Max. K 4 O DS.

>

> Email: max@...

>

> Transistor site www.funwithtransistors.net

> Vacuum tube site: www.funwithtubes.net

> Woodworking site

> www.angelfire.com/electronic/funwithtubes/Woodworking/wwindex.html

> Music site: www.maxsmusicplace.com

>

> To subscribe to the fun with transistors group send an email to.

> funwithtransistors-subscribe@yahoogroups.com

>

> To subscribe to the fun with tubes group send an email to,

> funwithtubes-subscribe@yahoogroups.com

>

> To subscribe to the fun with wood group send a blank email to

> funwithwood-subscribe@yahoogroups.com

>

> ----- Original Message -----

> From: "William Wood ke9xq@... [funwithtransistors]"

> funwithtransistors@yahoogroups.com>

> To: funwithtransistors@yahoogroups.com>

> Sent: Tuesday, November 11, 2014 5:10 PM

> Subject: [funwithtransistors] Potential New Thread

>

>

> Greetings Earthlings

>

> Just finished downloading a whole collection of

> Popular Electronics. And had an idea. If you are

> like me, most of these will now sit on a dvd and

> not be used as they probably should be used : )

>

> There are 338 issues in all, so if we took one

> issue per week and talked of it.s contents, of

> course focusing on the transistorized projects,

> we.d have study and debate material to last us for

> 5 to 10 years : ) Once in awhile there would be

> a subject or a project that might need discussion

> for more then one week. (3.5 Gig )

>

> This is only counting one magazine, there are

> several others well worth going over. I hope to

> download them in the next week or two.

>

> Just thinking, and wondering what you might

> be thinking. : ) or wondering : )

>

> Cheers

> Bill

> PS IF you are interested in these and many more:

>

> americanradiohistory.com

>

>

>

>

---------------

>

---------------

>

> Always keep electrons and holes flowing in opposite directions.

---------------

>

> Yahoo Groups Links

>

>

>







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#1887 Nov 19, 2014

I was trying to find an article in one of the magazines about boot strap circuits. I remember reading it when it came out many years ago. The article described how to use bootstraping to increase the input impedance of an audio amplifier. I used the basic idea in my X10 amp and the circuit is in the photos section. I was trying to avoid using capacitors for the bootstrap feedback. I have done some expiriments where I use 2 resistors in the emitter circuit , the base is biased by a voltage divider from B+ to the junction of the 2 emitter resistors. I found that any more than 20 percent tap and it starts to distort .



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