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Ironeagle
New member
Username: Ironeagle

Post Number: 5
Registered: 1-2006
Posted on Friday, January 27, 2006 - 6:48 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

im looking for a part number off a rci 2990.
im looking for the number off the transistor supply voltage regulator. this is the silver things on the back of the radio about the size of a quarter in the heat sinks.
if any one can give me the numbers off the back of them i would be much indeed thankful to you.
thanks and 73's
Doug
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Tech808
Moderator
Username: Tech808

Post Number: 9104
Registered: 8-2002


Posted on Friday, January 27, 2006 - 7:12 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

Ironeagle,

The back of my 2990 Finals say:

2N5301 / 9821

Part Number 2N5301
Military/High-Rel N
V(BR)CEO (V) 40
V(BR)CBO (V) 40
I(C) Max. (A) 30
Absolute Max. Power Diss. (W) 200
Maximum Operating Temp (øC) 175õ
I(CBO) Max. (A) 1.0m
@V(CBO) (V) (Test Condition)
V(CE)sat Max. (V)
@I(C) (A) (Test Condition)
@I(B) (A) (Test Condition)
h(FE) Min. Current gain. 15
h(FE) Max. Current gain. 60
@I(C) (A) (Test Condition) 15
@V(CE) (V) (Test Condition) 3.0
f(T) Min. (Hz) Transition Freq 2.0M
@I(C) (A) (Test Condition)
@V(CE) (V) (Test Condition)
t(d) Max. (s) Delay time.
t(r) Max. (s) Rise time 1.0u
t(on) Max. (s) On time.
t(s) Max. (s) Storage time. 2.0u
t(f) Max. (s) Fall time. 1.0u
t(off) Max. (s) Off time
Package Style TO-3
Mounting Style T
Pinout Equivalence Code 3-4


Hope this helps,

Lon
Tech808
CEF808
N9OSN
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Pogo12
Junior Member
Username: Pogo12

Post Number: 34
Registered: 3-2005
Posted on Monday, June 19, 2006 - 11:51 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

You can use the 2n3771 transistors which is what they use for the rci2995dx.

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