515: Difference between revisions

515 (view source)

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-The Tektronix 515 is a 15MHz single-trace all-tube oscilloscope [[introduced in 1955]].
+The Tektronix 515 is a 15 MHz single-trace all-tube oscilloscope [[introduced in 1955]].
 It does not use plug-ins.
-A rackmount version, the RM15 was also sold.
-There is also a 515A.
+A rackmount version, the RM15 was also sold.  There is also a 515A.
-The HV power supply uses tree [[5642]] rectifiers to produce +2325V for the CRT anode
-and -1675V for the CRT cathode.  The LV power supply is linear, using a [[6080]] tube as
+The HV power supply uses three [[5642]] rectifiers to produce +2325 V for the CRT anode
-the pass tube of the series regulator for +300V and +100V supply.  The -150V supply is
+and -1675 V for the CRT cathode.  The LV power supply is linear, using a [[6080]] tube as
-regulated by a [[6AU5]] tube.  The voltage reference for the -150V supply is a [[5651]]
+the pass tube of the series regulator for +300 V and +100 V supply.  The -150 V supply is
+regulated by a [[6AU5]] tube.  The voltage reference for the -150 V supply is a [[5651]]
 tube.  The 515 and 515A use [[selenium rectifiers]].  A kit was later made available
 for converting them to silicon rectifiers for improved reliability.
-The vertical amplifier is fully differential, DC-coupled, and all tube.  The
+The vertical amplifier is fully differential, DC-coupled, and all tube.  The stages are as follows:
-stages are as follows:
 * input buffer, cathode followers, [[6AU6]]
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 The 515A has a Z-axis input and slightly higher vertical sensitivity than the 515.
-The maximum vertical sensitivity is 100mV/div for the 515 and 50mV for the 515A.
+The maximum vertical sensitivity is 100 mV/div for the 515 and 50mV for the 515A.
 The [[516]] is essentially a dual-trace version of the 515.
-The 515 and 515A use the [[T55|T55 CRT CRT]].
+The 515 and 515A use the [[T55|T55 CRT CRT]]. P31 [[phosphor]] was standard.
-P31 [[phosphor]] was standard.
 Serial numbers 101 through 1000 are "Type 515".
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 File:Tek rm15.jpg
 </gallery>
+[[Category:Tube scopes]]