Copper Talk » Ask The Tech » General Technical Questions » Archived Messages » Modulator vs Amp? « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

747
Member
Username: 747

Post Number: 99
Registered: 8-2002
Posted on Monday, May 16, 2005 - 7:03 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

I really hate to sound ignorant, but in this arena I confess - I *AM* IGNORANT!

What's the benefits of having a 2 pill modulator over a 2 pill amp? Or are there any?

Can someone educate me a little here?
Top of pagePrevious messageNext messageBottom of page Link to this message

Alsworld
Advanced Member
Username: Alsworld

Post Number: 914
Registered: 1-2002
Posted on Tuesday, May 17, 2005 - 12:56 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

It's the same thing, different label. Most "modulators" are one transistor (or tube) that help to increase your overall signal/modulation. Most modulators seem to be class C which works well on AM, and can always be used as a driver for a larger amp.

Modulator or amp, there is no real difference between the two.

And no such thing as being ignorant here, it's why we are all here. To learn and teach and learn again.

Alsworld
Top of pagePrevious messageNext messageBottom of page Link to this message

Patzerozero
Advanced Member
Username: Patzerozero

Post Number: 798
Registered: 7-2004
Posted on Monday, May 23, 2005 - 9:57 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

'And no such thing as being ignorant here, it's why we are all here. To learn and teach and learn again'-if we WERE ignorant, we'd be on TV at 2AM selling our knowledge as infomercials!!
Top of pagePrevious messageNext messageBottom of page Link to this message

Bruce
Senior Member
Username: Bruce

Post Number: 2667
Registered: 9-2003
Posted on Monday, May 23, 2005 - 6:56 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

The only way i know of to "MODULATE" a signal is with a push-push amp. Now back in the 50's Central electronics used this method to make a "CONVETER " to generate a crude double side band ...... push-push 1625's or 807's would give you close to 100 watt
Top of pagePrevious messageNext messageBottom of page Link to this message

Hotwire
Intermediate Member
Username: Hotwire

Post Number: 373
Registered: 1-2005


Posted on Tuesday, May 24, 2005 - 12:46 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

We are all students here. Well at least I am. Seem to learn something everyday.
I have heard that ignorance is bliss. Just think if everybody was ignorant we would'nt have a worry in the world and our radios would never have a problem. We would'nt even need this forum to learn from each other because we would all be know it alls.........Now the topic of insane on the other hand.............Some say I am, but I dont believe them!!!! Ha ha ha ha hahahah ah ahaha a, oh man
Top of pagePrevious messageNext messageBottom of page Link to this message

Bruce
Senior Member
Username: Bruce

Post Number: 2688
Registered: 9-2003
Posted on Wednesday, May 25, 2005 - 7:07 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

A MODULATOR ? Now think about this If LINEAR input will equal output waveform ...... now how do you make a MODULATOR? Unless your running some sort of ALC and allowing it to control gain by sampling the input audio and increasing gain ...... OR as in a PUSH-PUSH amp cancling carrer and allowing sidbands to pass at full gain.... beats me how anything like a MODULATER could even exsist.
O-WELL
Top of pagePrevious messageNext messageBottom of page Link to this message

Bigbob
Senior Member
Username: Bigbob

Post Number: 1927
Registered: 12-2001
Posted on Wednesday, May 25, 2005 - 8:08 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Had a texas star modulator,brand new,very carefully removed cover to look inside,HOLYCRAP,just a one pill(2sc2290)amp without an ssb delay cap,but it had BIG input and output matching-transformers,boy on ssb the relay went ra-a-tat-tat,carefully put the cover back on and got my money back,phew.The guy who sold it to me has since took up residense in fed. prison ala fcc and the marshal service,double phew.Bigbob
Top of pagePrevious messageNext messageBottom of page Link to this message

Hotwire
Intermediate Member
Username: Hotwire

Post Number: 382
Registered: 1-2005


Posted on Thursday, May 26, 2005 - 10:51 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

What was wrong with it? It was missing a pill? Texas Star is one of the best.
Top of pagePrevious messageNext messageBottom of page Link to this message

Bigbob
Senior Member
Username: Bigbob

Post Number: 1932
Registered: 12-2001
Posted on Thursday, May 26, 2005 - 8:58 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Hotwire,nothing,nothing at all it was not missing a pill,it is simply an AM driver for the sweet 16 or the 12,you would have to modify it for ssb.I just wanted to purchase a 1-pill ssb amp and this was not it,on the outside of it it said it was a modulator,I believe 100v,it would make a perfect 80 watt rms amp.Bigbob
Top of pagePrevious messageNext messageBottom of page Link to this message

Hotwire
Intermediate Member
Username: Hotwire

Post Number: 384
Registered: 1-2005


Posted on Friday, May 27, 2005 - 6:14 am:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

10-4

Add Your Message Here
Post:
Username: Posting Information:
This is a private posting area. Only registered users and moderators may post messages here.
Password:
Options: Enable HTML code in message
Automatically activate URLs in message
Action: