Cape Old Radio

I-177 Data

Tube	A	B	Fil.	L	R	Sk	Press	Note
00A	2	10	5	23	27	A	AMPL	Mut.Cond.666.
01A	2	10	5	26	39	A	AMPL	Mut.Cond.725.
0A2	4	4	0	0	0	H	GAS No. 1	OK over 200. Shorts on 4 and 5.
0A3	7	1	0	50	0	G	GAS No. 1	Shorts on 4 and 5.
0A4	10	2	0	50	0	E	0Z4
0B2	4	4	0	30	0	H	GAS No. 1	OK over 200. Shorts on 4 and 5. See note D.
0B3	7	1	0	30	0	G	GAS No. 1	Shorts on 4 and 5.
0C3	7	1	0	30	0	G	GAS No. 1	Shorts on 4 and 5.
0D3	7	1	0	30	0	G	GAS No. 1	Shorts on 4 and 5.
0Y4	8	4	0	70	0	E	0Z4	Shorts on 1, 2, 3, and 4.

Important
This I-177 data-base was created using data from I-177 beta 1.08 worksheet, from July 5, 2002. A great compilation by Nolam E. Lee.
Note A
The plate cap of the tube under test should be connected to the upper left contact of the 6-pin (C) socket. A 12-inch lead with clip and bananna plug is provided for this purpose.
Note B
Connect the plate cap (nearest the operator) to the upper left contact of the 6-pin (C) socket; use the lead provided. Connect the grid lead to the remaining cap on the tube.
Note C
Set the MICROMHOS switch at 6000 when testing this section if the tube tester bears either Order No. 27613-Phila-44-52 or 52346-Phila-45-10 on the nomenclature plate.
Note D
This test is only a partial indication of a good tube. A complete test is only possible when using equipment.
Note E
Do not tap on this tube when testing for short because damage to the tube may result.
Note F
The Mutual Conductance values listed are averages for new tubes and only for a guide.