Am Modulator

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Try these two circuits, no integrated circuits there.

JimB
 

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Use diode ring modulator. it might need toroid input and output transformers, if you are working in RF range. otherwise suitable transformers may be used.

Next possibility is to use Mini Circuits Mixers like SBL1, etc
 
Hi Vikaschawlacv,

Here's one, . . . of many.

on1aag.
 

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JimB said:
Try these two circuits, no integrated circuits there.

JimB
Click to expand...

I like these answers. The scary thing is that I understand them. Yup, we must be "geezers".
 
But did you understand the question?, everyone seems to have assumed an AM radio transmitter, but his question was far more vague than that.
 
vikaschawlavc said:
Can Anyone Give Me Am Modulator Circuit ( Without Using Ic's) .

Ple Help Me!!!!!!!!!!!!!
Click to expand...


there are different circuits employing AM.you can search the net yourself if you want to. i will mention the names.
AM using lograthimic amplifiers
using nonlinear devices with a bp filter
bridge diode modulator
ring modulator.

regards
 
Nigel Goodwin said:
But did you understand the question?
Click to expand...

Yes the question is as bad as it gets, but unfortunately the only AM modulators I know are radio devices.
But at least I did suggest something without an IC.

JimB
 
JimB said:
Yes the question is as bad as it gets, but unfortunately the only AM modulators I know are radio devices.
But at least I did suggest something without an IC.
Click to expand...

I've no problem with valves, although the cathode follower circuit is a bit 'nasty' I far prefer the normal anode modulation using a transformer as your second example. You can also cathode modulate the PA valve, which is probably the simplest method? - but it suffers from similar limitations as the cathode follower example.
 
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