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Revision as of 17:47, 8 February 2012
The Tektronix 513 is a single-channel monolithic oscilloscope with 18MHz bandwidth. The input impedance is 1 Megohm in parallel with 40pF. It provides power to an optional cathode-follower probe. The 513D has a delay line; the 513 does not. The 513 (and 513D) contains a distributed vertical output amplifier made of 6CB6 tubes. The 513 has no thermal cutoff and uses selenium rectifiers.
Stan Griffiths says,
"The 513D used two different CRT types, depending on instrument serial number. From serial number 101-1887, the 5XP2 was used (Tek Part Number 154-066). From serial number 1888-up, the T51P2 was used (Tek pn 154-081). This one was made by Tek and you could retrofit it into the early 513Ds that came with the Dumont 5XP but it required a modification kit (040-0094-00). I have the instructions if you need them. Later, the 154-081 (also known as 154-0081-00) was replaced by the 154-0342-00 which is quite common and also used in the 530 series of scopes. If your 513D serial number is below 1888, the mod kit will have to be installed if you want to use this tube. I did not look at the mod instructions in detail, but often, with the instructions, you can put your own kit together and modify the scope just fine."
