Features - Kenwood TL-922A Instruction Manual

Linear amplifier
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l I l l l l l l I l l . l l l l l l . l l l l I l i l l I l l l I l I l l . l l l l l l . l l I l l l l l I l I l . l l I l l l . l I l l I l . l l l l I l l l l I l l l l l l I l . l I l l l l . l l l l I I l l I l l l l I l l l I l HHl l l l I l l . l l l l l l I l I l J l . l I l l l I . l Hl l l l HHI I J l l I I l I l I l I l HHI l I l l l I l I l l l I I I l I l l l l l l l l l l l l I l l mI l l l l Hl l l l l l l l I l I l l l l I l l l l l l I l l l l l l I l
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s EC T I O N 1. FEA T U R ES
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í i l J l l t , l l J l l l . l J J l l l l l l l J l l l J I l l l l l l l l . l l l l l I l l I m J l . l l l . I - I l I l I l i HI J l . l I J J J l l I l I l l - l l - l - l I l l l I l I I I l I l I l l l l l l l l l l l l . l I l l l l l I l I l l . l l l l I l . l l I l l l . l l l I l l l I l I J I l I l l l l l l I l I l l l l l l l l l l l l l i l l I l l l l l I l l - I l l l I l l l l HHI l l l l l l - l l I J J l . l l I l l l i
1.
The T L- 922A i s a Cl as s AB 2, gr ou n ded gr i d l i ne ar
l i n ea r i t y, a nd t he CW Mode f or l ow power c ons u m p-
am pl i f i e r de v el ope d b y Tr i o- Ke nwood t h r oug h ad-
t i on and h eat gener a t i on du r i ng ex t ended p er i o ds of
va nc ed h i g h- power t ec hnol ogy us i n g t w o h i g h- per -
oper a t i on.
'
, ,
f or ma nc e E i m a c 3- 500l powe r t ube s . l t c ov er s al l
:
ba nds 1 60 m t hr oug h 1 5 m f or SSB, CW and R TTY
8.
li ne ar AmpI i f i c a t i on Cont r ol Sw i t ch
'
m od e s of ope r a t i on.
Th i s s wi t ch i s ca pa bl e of s e t t i ng you r T L- 922 A i n t he
s t r a i g ht - t hr ou gh s t a t e i r r e s pe c t i ve of t he s t an d by
2 .
Unpr e ce dent e d Rel i a bj l i
c ont r ol on t he e xc i t e r .
!
,
'
'
!
The T L - 922A i s de s i gn ed t o pr ov i de s t abl e, h i g h R F
t put power r or ext ende d p er ; ods or con t ; nuous us e.
9.
Var i a bI e Thr es hol d Le ve l ( A LC De t ec t or )
,
,
E
U
n
e
g
c
; ne er e d w; t h Tr ; o_ Ken wood , s a dva nc ed c ; r c u ; t an d
The A LC c i r cu i t wi I l ac c omm oda t e exc i t er S of 80 w
h
e
an; caI t ec hn oI ogy, t he T L_ 922A empI oys t wo
t o 1 20 w ( nom i na l ) by v ar yi ng t h e A LC t hr e S hol d
d 3_ 5ooz power t ube s t o t he; r r uI I adv ant ag e.
I
p
e ve l . Thi s e f f ec t i v el y pr ev ent s ov er dr i vi n g t he f i na l
ower t ubes , ; m ; t; ng t he Am pI ; f : er t o : t s l : n ea r r ang e
,
3.
low nt er mod,l at ; on D ; stor t; on
and gU ar ant ee i n9 l OW d i S t Or t i On a t M a Xi m UM P OWef
i .
,
'
'
I nt e r modu l a t i on di s t or t i on ( l M D ) i s m i n i m i e d
t hr ough t he us e of ne g at i v e R. f. f ee dback.
1 O. Two Pa nel M e t er t
i
l n ad j us t i ng or moni t or i n g you r T L- 922A, on e me t e r
q.
Qu; c Tur n. on
aI wa ys i nd i c at e s t he ( l p ) pl a t e c u r r en t; wh i l e , wi t h' t he
W a r m- up i s not n ec es s a r y. The 3. 500Z t ube s a r e f a s t
ot her , you may r e a d ( I g) gr i d c ur r ent , ( R F ) r el a t i ve
!
! ,
,
he at j ng.
ou t put , or ( HV) hi g h v ol t a ge. Thi s f ac i l i t a t es eas e of
! '
ope r at i on of y ou r TL - 922A.
I , '
5.
Ful l Saf e t y Sys t e m
! ! ,
To pr ot e ct you a ga i ns t a ny pos s i bl e h i gh v ol t a ge e l ec t -
1 1. Ri gi d Mec hani ca l St r uct ur e
,
i
i
r ; c s hoc k, you r T L- 922A ha s a dou bl e s af et y s ys t em
The d i e- ca s t s i de pa nel s e f f ec t i ve I y s uppor t t he we i g ht
t
. ,
compr i s e d of i n t e r l ocki ng s wi t c h es . One i nt er r upt s
o f t he am pl i f i e r a g a i n s t s hocks a nd j ar r i n g dur i ng
,
t he h i g h voI t a ge pr i mar y ci r c u i t w h i l e t he s ec on d
t r ans por t a t i on. Rec e s s e d s i de panel hand l e s a r e pr o-
,
d i r ec t l y gr ou nd s t h e s e c o nd a r y h i gh v o l t a g e ci r cu i t .
vi ded s o t he Am pI i f i er ca n be ea s i l y c a r r i ed.
,
'
Al s o pr ov i d e d a r e bl e eder r e s i s t or s f or d i s cha r gi n g t he
h i g h v ol t ag e c ap aci t or s a nd ' ' DA N G E R ' ' wa r n i ng s a t
1 2. Ve r ni e r Pl at e Tuni n g 0i a l
h i g h v o l t a g e pos i t i ons . P l ea s e obs er v e a l l war n i n gs ,
The P LAT E t u n e d i a l i s e q u i ppe d wi t h a r e d uct i on
:
t he y ar e f or your pr ot ec t i on.
g ea r t hat f a ci l i t a t e s e as y t un i ng, pa r t i c u l a r l y f or t he
' .
,
,
h i g her ba nds . l t a l s o e f f e ct i v e l y pr e ve nt s ac ci dent al
í '
6.
h l e wl y- 0ev e I ope d fan Mot or 0el a y St op Ci r c ui t
m i s s - t uni n g du r i n g oper a t i on. Con t r ol s a n d pan el
'
,
.
,
,
,
To r e duc e powe r t u be det er i or at i on, you r T L- 922A
ar r ang ement
,
des i g ne d
t o
hum a n
eng i ne er i ng
ha s a n ewl y- dev el ope d f an m ot or de l a y- s t op c i r cu i t
s t a nda r ds
,
pr ov i d e s u p e r i or e as e o f o p e r at i on.
!
c om pr i s e d of a t he r mal del a y r el a y. The c ool i ng f an
wi I I n or mal l y r u n f or 1 QO s e conds ( Typ) af t er p ower
1 3.
e at , Cont em por a r y Appea r a nc e
i s r em o ve d f r o m t h e u n ; t a nd w i I I me a s u r ab l y e x-
M ec ha nj ca l a r r angeme nt a n d s oph i s t i c a t ed des i gn t O
.
t e n d e d t u be l i f e.
m a t c h a n y T r i o - Ke n w oo d t r a n S C e i v e r O r t r a n S m i t t e r .
You r TL- 92 2A ca n a I s o be us e d a s a hi gh - qu a l i t y,
7.
Mode Swi t c h f or Ef f i c; ent Li ne ar Op er at i on
ge ne r a l pu r pos e Amat eu r ban d I i n ea r a m pI i f i e r W i t h
j
,
M O D f s wi t c h i n g j s pr ov i ded t o s e l ec t bet we en t he
any e xc i t er c apabl e of 80W t o 1 2 OW R f OUt pUt ,
,
;
SSB Mode f or t he maxi m um P EP out pu t w i t h g ood
i
,
'
.
4

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