Tektronix 465m vs 465

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Does anyone know what the differences are between these two models of
scopes (if any)?

 

[Jamie]

Does anyone know what the differences are between these two models of
scopes (if any)?

if memory serves, the M is a higher BW unit.

 

[Jim Yanik]

if memory serves, the M is a higher BW unit.

no,the 465M was a "ruggedized" scope,closer to a 455A2B2 than a regular
465;not ANYthing like a 465 WRT circuitry.No common parts.
(dunno about the CRT)
They both were 100Mhz scopes.

And it really wasn't more rugged,IMO.
I'd rather have a 465 than a 465M.

 

[James Sweet]

Does anyone know what the differences are between these two models of
scopes (if any)?

465M is the Military version. It's functionally about the same, but it looks
different.

 

[James Sweet]

no,the 465M was a "ruggedized" scope,closer to a 455A2B2 than a regular
465;not ANYthing like a 465 WRT circuitry.No common parts.
(dunno about the CRT)
They both were 100Mhz scopes.

And it really wasn't more rugged,IMO.
I'd rather have a 465 than a 465M.

CRT has a different part number but it's compatible. I have a 465M CRT in my
465B and it works fine.

 

[Jim Yanik]

465M is the Military version. It's functionally about the same,

as are all scopes.... ;-)

but it
looks different.

electrically,it's totally different;the 465M has one hybrid (TEK-made)IC
that is the entire vertical preamp. the 465 pre-amp is discrete.

I also disliked the flex of the 465M plastic case.

 

[James Sweet]

as are all scopes.... ;-)

Touché

What I was getting at is the performance specs are about the same. I wasn't
aware of the hybrid chips, that's as good a reason as any to avoid it. I
hate scrapping an otherwise fine piece of equipment because of bad custom
parts made of unobtanium.

 

[Jim Yanik]

Touché

What I was getting at is the performance specs are about the same. I
wasn't aware of the hybrid chips, that's as good a reason as any to
avoid it. I hate scrapping an otherwise fine piece of equipment
because of bad custom parts made of unobtanium.

The 465 still has TEK-made ICs in it;the 155-0049-0x sweep logic IC,a
couple of trigger amp ICs(155-0032-xx)and some have a vertical output amp
IC.
IIRC,the 465 was the top selling scope of all time.

But there are SO many other TEK scopes that use those same ICs,they are
still obtainable.