[Amps] ACOM-1000 replacing tubes

[Paul M Dunphy]

     I've pretty much talked myself into getting an ACOM-1000.  Even 
with the prices of the 4CX800As increasing, I'm still impressed with 
this amp.  The one reservation is that the manual says, "Replacement 
is a complex and potentially dangerous operation.  For this reason we 
recommend this work be carried out by a trained service technician."

     How "complex" is this?  I've been changing tubes in older amps 
like Clipperton-Ls, TenTec Centurions and AL-811Fs for years.  I have 
friends who routinely have replaced 8877s in AL-1500s, 4CX800as QRO 
Technologies, etc.

     I don't want something so complex that I have to send it back to 
the supplier to change a tube!  It's too bad the manual was a bit 
more specific on what is involved.  Has anyone changed one, or know 
what they are referring to in terms of it being complex or 
dangerous?  I don't expect to have to do this often (probably once 
every 5-10 years), but tubes are tubes in any amp, and eventually 
they wear our.  I'm not an Electrical Engineer, but I'm pretty good 
at electronics and I've been playing with amps and the like for 20+ 
years.  I can't imagine it is that bad.

     Thanks!

73, Paul VE1DX  


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