Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....

:Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....

Can you link us to the schematic for the radio in question? Also, what is the current rating and peak-inverse-voltage rating of the SS rectifier? Is it a bridge rectifier?

When you say "the one you have," what do you mean? A tube-type rectifier? Does it work?
Doug

:Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....

Doug,

He is referring to a series of International Servicemaster parts referred to as solid state equivalents. Examples are the International SST100 which was/is a replacement for the 5Y3, 5U4 etc. The SST200 replacement for 6X5, etc. And the SST300 replacement for the 80, 83V and etc. The 5Y3 and 6X5 subs looked pretty much like a regular black metal tube such as a 6SK7, 6SA7, etc. I also have a couple of 1N1238 solid state replacements for the 5AU4, 5AZ4, 5U4, etc. I could email you a pic of the ones I have if you are interested in seeing what they look like.

Radiodoc
****************

:Can you link us to the schematic for the radio in question? Also, what is the current rating and peak-inverse-voltage rating of the SS rectifier? Is it a
bridge rectifier?
:
:When you say "the one you have," what do you mean? A tube-type rectifier? Does it work?
:Doug
:
::Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....

Were they supposed to have the same drop or are they just two diodes in a plug?

:Doug,
:
:He is referring to a series of International Servicemaster parts referred to as solid state equivalents. Examples are the International SST100 which was/is a replacement for the 5Y3, 5U4 etc. The SST200 replacement for 6X5, etc. And the SST300 replacement for the 80, 83V and etc. The 5Y3 and 6X5 subs looked pretty much like a regular black metal tube such as a 6SK7, 6SA7, etc. I also have a couple of 1N1238 solid state replacements for the 5AU4, 5AZ4, 5U4, etc. I could email you a pic of the ones I have if you are interested in seeing what they look like.
:
:Radiodoc
:****************
:
:
::Can you link us to the schematic for the radio in question? Also, what is the current rating and peak-inverse-voltage rating of the SS rectifier? Is it a
:bridge rectifier?
::
::When you say "the one you have," what do you mean? A tube-type rectifier? Does it work?
::Doug
::
:::Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....

:Were they supposed to have the same drop or are they just two diodes in a plug?
:
::Doug,
::
::He is referring to a series of International Servicemaster parts referred to as solid state equivalents. Examples are the International SST100 which was/is a replacement for the 5Y3, 5U4 etc. The SST200 replacement for 6X5, etc. And the SST300 replacement for the 80, 83V and etc. The 5Y3 and 6X5 subs looked pretty much like a regular black metal tube such as a 6SK7, 6SA7, etc. I also have a couple of 1N1238 solid state replacements for the 5AU4, 5AZ4, 5U4, etc. I could email you a pic of the ones I have if you are interested in seeing what they look like.
::
::Radiodoc
::****************
::
::
:::Can you link us to the schematic for the radio in question? Also, what is the current rating and peak-inverse-voltage rating of the SS rectifier? Is it a
::bridge rectifier?
:::
:::When you say "the one you have," what do you mean? A tube-type rectifier? Does it work?
:::Doug
:::
::::Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....:::Radiodoc is quite right, it is a octal base with some kind of solid state rectifier potted inside with a steel cap on top, designed to plug into the tube rectifier socket. I have heard about cathode stripping due to some of these things having no delay and therefore no warmup time..... do these devices have that problem? Should I avoid using it?

::Were they supposed to have the same drop or are they just two diodes in a plug?
::
:::Doug,
:::
:::He is referring to a series of International Servicemaster parts referred to as solid state equivalents. Examples are the International SST100 which was/is a replacement for the 5Y3, 5U4 etc. The SST200 replacement for 6X5, etc. And the SST300 replacement for the 80, 83V and etc. The 5Y3 and 6X5 subs looked pretty much like a regular black metal tube such as a 6SK7, 6SA7, etc. I also have a couple of 1N1238 solid state replacements for the 5AU4, 5AZ4, 5U4, etc. I could email you a pic of the ones I have if you are interested in seeing what they look like.
:::
:::Radiodoc
:::****************
:::
:::
::::Can you link us to the schematic for the radio in question? Also, what is the current rating and peak-inverse-voltage rating of the SS rectifier? Is it a
:::bridge rectifier?
::::
::::When you say "the one you have," what do you mean? A tube-type rectifier? Does it work?
::::Doug
::::
:::::Are the old plug-in SS rectifiers that International Rectifier used to make safe to use in a vintage radio? Or is the one I have worth more by itself, as a collector's item? Or what? Thanks....

:::Radiodoc is quite right, it is a octal base with some kind of solid state rectifier potted inside with a steel cap on top, designed to plug into the tube rectifier socket. I have heard about cathode stripping due to some of these things having no delay and therefore no warmup time..... do these devices have that problem? Should I avoid using it?

Cathode stripping is a debated phenomenon. If it occurs, it's when the B+ is applied to a tube before the filament is warmed up.

If there is an issue of cathode stripping, a SS diode could provoke it, or make it worse. But, many modern tube-type audio amps have SS rectifiers, and seem to operate OK.

My opinion: don't worry about it. If a tube were to croak ahead of its time, you can replace it.
Doug

::::Radiodoc is quite right, it is a octal base with some kind of solid state rectifier potted inside with a steel cap on top, designed to plug into the tube rectifier socket. I have heard about cathode stripping due to some of these things having no delay and therefore no warmup time..... do these devices have that problem? Should I avoid using it?
:

This is only a problem for very high plate voltages such as used for large transmitting tubes like the ones in commercial radio stations. It is not a problem for consumer equipment. Solid state rectifiers have been used for many years, going back into the 50's when selenium rectifiers were common in radios and televisions. In addition, directly heated rectifier tubes such as 5U4 and 5Y3 bring the B+ up long before the other tubes warm up. The rise time is slower to be sure but the other tubes still have full B+ long before their catohde emission starts. In other words this is a myth perpetrated by folks who really don't know what they are talking about.

:Cathode stripping is a debated phenomenon. If it occurs, it's when the B+ is applied to a tube before the filament is warmed up.
:
:If there is an issue of cathode stripping, a SS diode could provoke it, or make it worse. But, many modern tube-type audio amps have SS rectifiers, and seem to operate OK.
:
:My opinion: don't worry about it. If a tube were to croak ahead of its time, you can replace it.
:Doug
:
:
:::::Radiodoc is quite right, it is a octal base with some kind of solid state rectifier potted inside with a steel cap on top, designed to plug into the tube rectifier socket. I have heard about cathode stripping due to some of these things having no delay and therefore no warmup time..... do these devices have that problem? Should I avoid using it?
::